snigger

US /ˈsnɪɡ.ɚ/
UK /ˈsnɪɡ.ɚ/
1.

낄낄 웃다

to laugh at someone or something in a silly and often unkind way:

:
They spent half the time sniggering at the clothes people were wearing.
1.

낄낄 웃다

the act of laughing at someone or something in a silly and often unkind way:

:
There was a snigger from somewhere behind her.