A sexual position in which the male bends over and sticks his dick backwards between his legs and the girl backs up onto his dick while making beeping noises like a Mack Truck. Variations include the Wide Load (women in excess of 200 lbs.)
Guy: Yo my girlfriend pulled the Mack Truck yesterday. I nutted everywhere
Other Guy: Dude thats so ballin. Did you try the Alaskan pipeline after?
Guy: No I've been constipated for weeks so I didn't have any frozen shits laying around
Julia Eggleston and Chuck Norris can both be concidered "mack daddys."
someone who hooks up with a guy, and then the guy realizes he is gay.
he's like WADDUP after hooking up with a mack feldman, and then goes and hooks up with a ryan zeisloft.
The act of repeatedly stopping by a co-worker's cubicle trying to ask them out on a date by feeding them a lame come-on line. It usually involves the person doing the macking actually leaning on the outside of the mack-ee's cubicle unit so as to make for a more intimate setting, while keeping respect to "boundaries," to ask a non-work-related question rather than coming around to the inside of the person's cubicle to discuss a legitimate, work-related topic.
Alfonso keeps cube macking on Sally to see if she'll go on a date with him; even though he's cube macked on every single woman in the office and they've all said no.
Slang term for synthetic marijuana. aka "spice"
Hey John, do you know where I can get some "Mary Mack"?
Yeah Mark, there is a store down the street selling it for $25.00 a gram.
Thanks John, you wanna smoke a blunt with me?
Slang term for McDonald's.
"I'm hungry; Let's hit up the Mack Shack."