Sperm in a diaper from a male adult baby or male diaper lover.
Billy jacked off in his diaper and made some diaper cum.

Jessica rubbed Jason's diaper until he made some diaper cum.
by Ai Ai 73543745747 December 25, 2012
Get the Diaper Cum neck gaiter and mug.
A cloth object use to clean up cum dripping out of a girl after a cream pie

i.e. The literal shirt off a guys back, a towel, etc.
"I just shot my load in her, now I need a cum diaper to make sure it doesn't drip out everywhere"
by Cumguzzler96 February 08, 2015
Get the Cum diaper neck gaiter and mug.
They can make them as thin as they want but it will always feel like a cum diaper.

Who left a dirty used cum diaper in my car?
by Denagnag September 17, 2009
Get a Cum Diaper mug for your dog James.