Top definition
The "muted open mouthed smiling with hand over mouth snigger" laugh that one does when something distateful and/or painfull befall someone else.

Pronounced 'mom-schwams'.
"dude, Katie totally kicked Dave in the nuts, and the whole bar was totally MOMSWHOMS."
by Shifty Chris May 18, 2006
Get the mug
Get a MOMSWHOMS mug for your mate Nathalie.