check, checks, checked, checking, to examine, examine
Mnemonic
[y-] Yoshi is in the [4] bathroom of the [-an] pawn shop where there is a 馬 horse僉 party. The bathroom is so small though that it only fits one 馬 horse. Yoshi 驗 checks that the 馬 horse is having a good time. Probably not, it seems like a lame 僉 party. Yoshi 驗 checks the time to see how much longer this will last, before sitting on an egg, waiting.