expression, godan verb (-su)
stifle a laugh; hold back a laugh
Used when someone suppresses an involuntary laugh, often in a situation where laughing would be inappropriate.
彼の真面目な顔を見て、笑いを噛み殺すのに必死だった。
Seeing his serious face, I struggled to stifle my laughter.
会議中
It was hard to hold back a laugh during the meeting.