夫婦喧嘩（ふうふげんか） - quarrel between spouses
As Leebo mentioned some time ago, one has to watch out for the rendaku sometimes 
.
Also:
生息地（せいそくち） - animal habitat
清掃する（せいそうする） - clean-up, garbage collection
正装（せいそう） - formal dress, uniform
凄愴（せいそう） - pathetic, dreadful
@yamitenshi not the せいそ we’re looking for, right? 
Uniform sounds about right for some of 'em
演技 while watching ビースターズ
食わせ者・cheat, a sham
Another Beastars fan!! 
I saw that word a lot last night when I was watching Seinfeld and Elaine told Jerry she faked it every time when they were dating 
影武者 - Political decoy/Body double
A shadow (影) military (武) someone (者)… So rather than being this military person, they are their shadow. In appearance it is them, but upon deeper inspection you realize it’s a decoy. That’s what we call a political decoy or body double, though literally it means shadow warrior.
Reading: かげむしゃ
This word uses the kun’yomi reading for 影 and the on’yomi readings for 武 and 者. The reading of 武 is a little different from what you learned, though, so here’s a mnemonic just in case:
You want to retreat from society. You hire a body double to assist you. This body double is a cow. When you ask the cow if they understood everything, the cow replies: "Moo (む)."
Visualize the cow impersonating you. This cow is a real man/woman/person. This cow likes doing skateboard. This cow is just like you - except from the fact they are a cow, maybe?
ザコ - small fry (also metaphorically refers to people)
絹布 - silk cloth
絹織物 - silk goods/fabrics
織物業 - textile industry
Smells like 甘い生活, but it’s just a dictionary search 
釣竿 - fishing rod
I probably learned more, but none that stick out. But this was while reading a book I now cannot remember the name of.
Also works like “noob” in Internet slang
錬鉄 - wrought iron
錬鋼 - wrought steel
尿検査 - urine test/analysis
白夜 - Midnight Sun
A white night is when the sky is still really bright at night. This could only mean the sun is still there - so it’s a midnight sun!
Reading: びゃくや
The reading of 白 is a bit different from the one you learned, so here’s a mnemonic to help you:
It’s the dead of the night and you cannot see. Suddenly, you see a bee and a yack approach one another, then fuse together to form a mythical creature called the byack (びゃく). The byack is a legendary creature with the luminescence of the sun, causing a wondrous midnight sun in the sky.
It’s plant time:
観葉植物 - houseplant
光合成 - photosynthesis
液体肥料 - liquid fertilizer
狂い咲き - off-season flowering
県庁所在地 - prefectural capital
鬼ごっこ - playing tag
秤 - scales, weighing machine
手触り - touch
検疫 - quarantine
病状 - patient’s condition
鼓動 - pulsating, throbbing
炊き出し - emergency food distribution
酌婦 - barmaid
多様化 - diversification
大腸菌 - gut bacterium
宿借り - hermit crab
空襲 - air-raid, airstrike (good use of the 襲 kanji!)
政令指定都市 - ordinance-designated city
沼地 - marshland, swamp
勤め先 - place of work
相棒 - pal, partner
独学者 - self-learner (self-educated person)
裁判官 - judge
峡谷 - canyon
峡谷風 - canyon wind
谷間 valley, cleavage
外れ miss in lottery ticket
土下座 kneeling on the ground, prostrate oneself
血眼 bloodshot eyes
熟女 MILF
三昧 being immersed in
血反吐 blood vomitting
See, I thought I knew where you’ve been getting your vocab, but that last one has me kinda worried 
Some Kana words I have recently learnt,
コーディネート matching clothes
ソリスト solo player
カチューシャ hairband
モブ background character
ミーハー follow-the-crowd type
ストレート straight person
ハックション atchoo (sneeze)
カプ shipping
フリーター person working on part-time work
リアタイ real time, watching live
キャパ capacity
デフォ default
モンペ over-demanding parent
レイヤ cosplayer
シンクロ sync
ファスナー zipper
チェケラ check it out
One of my students has been been trying to get me to remember みけん - 眉間 for the last month. Finally remembered yesterday. It’s the space between your eyebrows (was jokingly calling it はなうえ－鼻上)
Finally started playing persona 5 royal recently, so many new words 
The most recent one is,
壺 つぼ vase
Just learned 範疇 (はんちゅう・category)
Quite a spectacular kanji 
射精 = しゃせい = Ejaculation… To much hentai recently…