gmacking 

To chill

Yo me and Chris are gmacking at my house

gmacking by ChinnieexC December 27, 2009

G macking 

To chill, relax.

Guy 1: What you doing???

Guy 2: Nothing G macking you??

G macking by Perrone 0.0 July 23, 2009

glacking

The act of slarving a dode to the point in which one is only able to utter "glack" through the tiny air crevasse between their lips and the glack-causing instigator's genatalia.

I had your mom glacking on my D so hard bro!

glacking by Bwade December 3, 2015

Gacking

The act of sucking your own dick.

Person: Did you know that Marilyn Manson loves gacking?
Another person: No way!!
Person: Really? Of all the things he's into, THIS, surprises you? Wow. I'm tweeting this convo, ya twat!

Gacking by KingFobos July 14, 2016

gacking

Throwing up vigorously and loudly. It's worse than yacking.

Upon learning that she could get pregnant by swallowing sperm, she began instantly gacking on her new shoes.

gacking by RBV and Ice October 4, 2016

gracking 

a word used to substitute a thrusting motion. usually when a guy is trying to do a pelvic thrust and or a dance.

Guy: Did you see john gracking?
Guy 2: yes! wish i could grack like that!

gracking by supercookiemonster May 31, 2011

gacking off 

when a guy jacks off without showering for a couple of days (2 OR MORE).

BOB: today i was gacking off

gacking off by chivorey March 26, 2009