The definitions of "thumb-kin" are thumb-kins.
by Palec Smuk December 14, 2008

by kevo:) May 4, 2022

1. (n.) When your thumb gets semen all over it after a person (typically male) masturbates
2. (n.) A person with a lot of experience in masturbating
2. (n.) A person with a lot of experience in masturbating
1. "I had a White Thumb last night after I masturbated"
2. "I've been masturbating for so long I have a white thumb
2. "I've been masturbating for so long I have a white thumb
by Omnisexual-Man February 16, 2024

by veronica1292 February 5, 2017

by ChickenChoker9000 May 8, 2018

by pancakedonahue February 8, 2023

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
