A tack 

Someone who like it up the bum

Sophie likes a tack

A tack by ‘Industrial mAb February 7, 2023

go sit on a tack 

Phrase. If you say this to someone, it means, get the hell away from me OR shut up. In most cases, it means who gives a damn what you say?

Jill: Hey Bob! Will you go see a movie with me?
Bob: Go sit on a tack.
Jill: You don't have to be so rude.
Bob: Go sit on a tack.
Jill: You are such a dick!
Bob: Go sit on a fucking tack.

go sit on a tack by dotnosedgirl February 20, 2011

Sharp as a tack 

Dressed up, nice clothes, looking nice.

He looks so nice, he's sharp as a tack.

Sharp as a tack by Sharon Denise May 8, 2018

sharp as a tack 

something very good, interesting

"Then all of a sudden old spencer looked like he had something very good, something sharp as a tack, to say to me" (salinger 10)

sharp as a tack by pbbt October 10, 2007

hack-tack-a-riffic 

1. Negative statement referring to a programming or technical solution involving un-optimized, risky or otherwise dangerous methods.
2. Polite way of referring to software code as being asstastic or hacktastic.

“This seems hack-tack-a-riffic and bad, are we sure we want this pushed?”

hack-tack-a-riffic by Vijay Thakkar July 16, 2008

hack-tack-a-riffic 

1. Negative statement referring to a programming or technical solution involving un-optimized, risky or otherwise dangerous methods.
2. Polite way of referring to software code as being asstastic or hacktastic.

“This seems hack-tack-a-riffic and bad, are we sure we want this pushed?”

hack-tack-a-riffic by Vijay Thakkar July 16, 2008

Tack on a crow

Navy tradition of punching your friend in the arm when get promoted to E3 to E6, punch lands where the patch wound get sewn on to the uniform.

Tack on a crow. My arm is still sore from getting my crow tacked on.

Tack on a crow by Cecilchuck June 9, 2019