Top definition
Cum In Mouth & Swallow. When, during sex, a woman (or another man) will allow a man to ejaculate in her mouth, swallowing all of his semen.
"It is a dream of mine to meet a girl who will let me CIMSW.
by bxchiggy December 21, 2009
Get the mug
Get a cimsw mug for your friend Yasemin.