This is why I installed the “close but no cigar” userscript, because I was accidentally cheating way too often.
same for me, immediately followed by hitting enter so i don’t have to stare at my mistake longer than i have to
I write “watu”
In the beginning it was “what”, but I’ve got to think of something else for the readings.
Wow, had no idea others did this as well, amazing. I just type “ka” everytime for no good reason.
I always type “fu” for meaning and “ふ” for reading
Fu as in, F U, as in…you know
I type either “dunno” or “wakanai”
I type “ひ” unless I think the answer might be “ひ”…
Press x to doubt
Came here to say this.
urge to vocalize internal monologue intensifies<
I remember that when I started WaniKani, I forgot the reading of 下 so I just looked at my kana keyboard (on mobile) and randomly clicked on the middle top character - か, and… it was accepted.
That was weird, but at least I don’t think I ever forgot the reading afterwards.
wakarimasen
I type a variety of things, sometimes long strings, to give me a laugh among other things. “I forget”, “what the heck was this”, “seriously wth is this kanji, how does a cow and a blade make ‘untie’”, etc…
HAHA! I always type KA or か for no valid reason xD
I type fu because it associate it with a few kanji that are associated with badness (i.e. me not remembering) like 負 and 不.
Sometimes I throw out token ones that seem to be common like こう (classic kouichi), especially if it’s a new level I just started and I foolishly learned a bunch of new kanji before going to bed or something…
I use “-” when I don’t want to try, which is valid in both languages.
I just type “o”, it helped me remember the right answer for the bear wearing a obi, because I was so surprised I got it right!
I type “n”, because whether it is meaning or reading, I don’t neet to type anything else 
What are the kanji in the middle on the left between 「日清」 and 「グループ」?