Rule of thumb

An approximate way of doing something based on presumptions rather than fact. Contrary to popular belief, the idea the law once allowed a husband to beat his wife as long as the device was no thicker than his thumb is false, as such assaults were outlawed for centuries in common law, although the ban wasn't generally codified in written law until the 1980s.

A driver kept going 5 mph over the speed limit, thinking the police had a rule of thumb that it was a waste of time to give out a ticket to anyone going anything lower than that.

by BlastFurnace February 27, 2025

Extreme thumb war

Two males thumb war and the loser gets fucked in the ass

Me and john played extreme thumb war last night, man it sucks to lose

by Fortnite>women February 12, 2018

thumb sucking at an old age

when you still suck your thumb at an old age such as 5-11

me: I suck my thumb. Them: oh so u have a thumb sucking at an old age me: yes

by JON DOH7487387847847 March 31, 2022

The Kentucky Thumb

The act of placing your thumb in a woman's vagina, so far that it may just be saving her life.
Made famous by famous YouTube star, The AK Guy, Brandon Herrera.

I gave her the Kentucky Thumb last night, she was done in only a few minutes.

by allerr12 May 20, 2021

Plastic thumb

When you have An abnormally large thumb and stick in in a transgender robots vaginal area. Once done cut off your plastic finger, dip it in some frosting and shove it up your ass

Yo poopy want plastic thumb?

by Land cooch September 20, 2018

Kentucky Thumb

When a person bends over, gets their ass slapped then a thumb up the butt while receiving a hickey on the neck.

I'm gonna give Hailey the Kentucky Thumb after prom.

by AKSquad May 20, 2021

Thumb

A relatively fat person who has a gut and arches their back when they walk.

"Look at that guy! He looks like a god damn hitch hiker's thumb!"

by fxper March 19, 2021