When you bust your nut solely from stroking your meat between the ass cheeks of your partner. There’s no penetration. Just friction from that ass crack.
I did the old crack jack last night and nutted all over the small of her back.
I did a crack jack last night with no lube. The skin to skin friction was intense.
I did a crack jack last night with no lube. The skin to skin friction was intense.
by Eaton Holgoode October 11, 2018

Verb. The act of thrusting a penis betwixt two clenched butt cheeks in lieu of traditional vaginal or anal intercourse until climax.
"My wife had a c section so we can't fuck for 6 weeks. Hopefully, she'll let me do some crack jacking."
by Kickernoc September 06, 2014

Butt crack jack is a redhead who is a butt crack. He is a pain in the arse and weird. I dislike him and do not trust him.
by Farting Tim March 20, 2022

by pizzaman724 January 09, 2011

by sparky.exe September 06, 2006

The act of drawing a smiley face on your partners ass with the mouth around the anus, thus meaning then when you take them up it, you recieve head and anal simultaneously.
My wife's crack-a-jack looks like the kool-aid man.
by Iainn August 28, 2005

a person who has been doing crack until 3 oclock in the morning then eating a steamed bun with the last pickle found in the pickle jar at the back of the neighbors fridge.
steve - "did you see micheal the other night" Jordan - " yes I did" steve - " he totally did a crack pot jack"
by milkman78 December 18, 2015
