sit on a tack
An expression of contempt or dismissiveness directed at someone, particularly in the case of disagreement.
Meaning adapted from Wiktionary, available under CC BY-SA 4.0.
“If he thinks I will agree to that, he can go sit on a tack.”
“When the manager suggested we work through the weekend, the team told him he could sit on a tack.”
“Rather than engaging in a polite debate, she dismissed his arrogant proposal by telling him he could sit on a tack.”
- 01
change of tack
A reversal of an opinion.
- 02
get down to brass tacks
To (start to) consider or deal with the most important details or facts about something.
- 03
hold tack
To last or hold out.
- 04
sit back
To relax, to not exert oneself.
- 05
sit in
To attend a class, educational presentation, meeting, etc. for one time, as a visitor.
- 06
sit in for
To substitute; to take somebody's place.
- 07
sit in with
To join (often as an observer, supervisor or outsider) a group working together on a task.
- 08
sit on
To block, suppress, restrain (something).
Last updated August 10, 2026