わらいをころ
Meanings
Expression
Verb (5-dan, す)
1. to stifle a laugh; to hold back a laugh
Kanji used
laugh
bite
kill
Composed of
laugh; laughter; smile; sneer; sex aids (e.g. dildos, pornographic books, erotic woodblock prints, etc.)
to stifle a smile, yawn, etc.; to bite to death