Slackjaws

A Person Who's Bottom Jaw That Moves Back And Forth Uncontrollably.

Damnit, Those Slackjaws Feens Are Headed To The Dispensary To Get That Fix.

Slackjaw McMaggotsac

The alter ego to a certain Jack Street. One of many names Jack Street goes by. Others are; Slack Lip, Slack jaw, Mcmaggotsac, Jake Lane, Jason Mra, Chip Fuyoung, It's Meeeeeee Weeeeesker, and Bitch.

Any of the following names can be used to describe someones
A) Jack Assery
B) Tom Foolery
C) Jack Streetery

" He's one hell of a Slackjaw McMaggotsac if i've ever seen one....and I have, so i totally know what i'm talking about. Also, So You know who I am talking about, i'm Talking about Jack Street."

slackjaw femboy

someone who only likes slackjaw because they like soups (the youtuber) videos

jaythan is a real slackjaw femboy.