Jack-Smack 

An open handed, back-hand slap to the temple. Not intended to knock someone out, but instead, to make someone appreciate your point of view in a forceful manner so they eventually agree with you. This is considered a more intimidating and more painful form of "Point Making" as opposed to the more traditional and less painful open hand cheek slap.

Jeff: Hey Greg, Jimmy owes me some money and I asked him to pay me and he laughed.

Greg: He laughed?

Jeff: Yes, he laughed!

Greg: You need to Jack-Smack him and let him know you are serious without knocking him out.

Jack-Smack by Norge August 11, 2010

Jack smack 

When someone takes an unnecessarily long hit off someone’s vape or cart and taxes it, often killing it in the one lung destroying hit they take.

He just jack smacked my juul and now it’s dead

Jack smack by Coochie catcher May 4, 2019

Jack Smack 

Not having or doing anything

"Do you have money? I don't have jack smack"
"What did you do last weekend? I didn't do jack smack!"

Jack Smack by SuperThought October 1, 2003

jack and smack 

Smacking your enemy in the face with your cum

After pissing home of he jack and smack the road rage drive

jack and smack by J.olson27 February 1, 2021

Jack o’smack 

A sex position where the woman puts a pumpkin on her head, while the man smacks her ass till it’s bright red and looks like a wild card. Also known as pumpkin fucking.

1- You what? What’s Jack O’smack?

2- Dude, haven’t you ever pumpkin fucked your girl? Fan-fucking-tastic!!!!

Jack o’smack by Onyx_hana April 24, 2022

Smack-A-Jack 

To slap another with enough force to knock some sense back upon them.

Louie im going to smack-a-jack you so fast!!!

Smack-A-Jack by slapshotpeewee9 May 4, 2007

Jack Sack 

A type of manbag, but far more cool! Used by Jack Bauer of 24 to carry his awesome and unlimited arsenal of weapons to take on the terrorists that threaten the US

Jack: Dude, that manbag is so lame, you need to get yourself a Jack Sack

Tony: Copy that

Jack Sack by Paulstudy March 27, 2010