knuckle babies 

The man custard that shoots from the penis when rubbing one out.

"That chick is so hot, when I get home I'm gonna pop off some knuckle babies. When doing so, she will tell me I am great, and I will believe her."

knuckle babies by tommyboy79 April 24, 2006

Knuckle babies 

When jacking off and you sperm and sperm runs down the knuckles-

When flashjo3 whips out a batch of the knuckle babies

Knuckle babies by MADDENGODOF813 May 16, 2011

knucklebabies 

n. knucklebabies is the outcome a male gets after he roughs up his suspect (masterbates) and dosent release his sperm into a sock or something and it is all over the back of his hand.

I got home late lastnight and my wife was asleep,so i went to the computer and racked out a batch of knucklebabies.

knucklebabies by richard bellamy March 8, 2008

knucklebabies 

Sperm or semen, especially when induced by masturbation.

"Yo Scooter, what's up with your petrified Kleenex?"

"It's nothin' dude, just my knucklebabies from rubbing one out earlier today."

knucklebabies by dandruffy August 16, 2008