1) Tea bagging someone you're interested in
2) Dropping your testicles onto a person's face as a means to express romantic interest
2) Dropping your testicles onto a person's face as a means to express romantic interest
by ZombieBreath916 October 11, 2010

by Arthur September 14, 2003

by lauren and sadie January 4, 2004

Covert flirting between two people. Because they have to keep their true feelings for each other secret, for whatever reason (i.e. they work together, one is married, etc.).
"Those two can't seem to stand each other! They're always fighting over something!"
"Wrong, man. It's all a front they put up. They're actually macking on the sly."
"Wrong, man. It's all a front they put up. They're actually macking on the sly."
by D. Gould March 8, 2006

1. When one of your bros picks up the target that you were going after.
2. Talking bad about one of your friends to the girl he is chasing.
2. Talking bad about one of your friends to the girl he is chasing.
1. "Man, Drew totally mack hacked that blonde away from me. What a dick."
2. "Things were going fine until Ryan came over and started mack hacking. He told her about my other two girlfriends."
2. "Things were going fine until Ryan came over and started mack hacking. He told her about my other two girlfriends."
by The Ztud December 24, 2008

The act of licking, chewing, or gnawing on or within the intergluteal cleft. More general than analingus, involving all associated parts.
Oh! Did see Robert Downing Jr. straight crack macking on that chick's ass in "Two Girls and a Guy"?? I bet he has ass breath.
by Luchosi El Poncho May 11, 2010

Two kids are texting: kid 1: "John has a big mack addiction"
Kid 2: "you mean Big Mac!"
Kid 1: "get a life, burger SJW piece of shit"
Kid 2: "I'm gonna go beat my wood"
Kid 2: "you mean Big Mac!"
Kid 1: "get a life, burger SJW piece of shit"
Kid 2: "I'm gonna go beat my wood"
by Lolsack04 October 6, 2017
