1 definition by Crazyfool99

Top Definition
When a man cums on a girl's ass crack so that it trickles down into another girl's mouth.
Guy: Here comes the cumtrain!
Girl: It better not be late like last time.
by Crazyfool99 July 31, 2008

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×