"The fact that pages 136 & 137 were stuck together in the Hustler magazine at the sperm bank was an obvious indication that someone had been there cum thumbing it previously."
by billebllunt December 31, 2013
Get the Cum Thumbingmug. 
The teenage act of using your thumb as a hole guide for your cock which is larger than she is used to. After slapping your fumbling dick in your palm, you gently insert your thumb into her pussy. Like Houdini you simply run your cock along your thumb, using it like a ruler or a guide, to direct and allow an easy and simple access’s to an otherwise unsatisfied pussy.
She was too tight for me, it was dark and I couldn’t even find her hole
properly. I heard Jimmy strolled in last night at the pub and after a few drinks he took her home. Apparently he used “the rule of thumb” his old
Man taught him. After a while the crafty fucker worked his huge knob to the hilt - and we didn’t see him for 3 days!
properly. I heard Jimmy strolled in last night at the pub and after a few drinks he took her home. Apparently he used “the rule of thumb” his old
Man taught him. After a while the crafty fucker worked his huge knob to the hilt - and we didn’t see him for 3 days!
by Jungle Diver August 1, 2019
Get the The Rule of Thumbmug. The cramp on the palm of the hand at the inner base of the thumb caused from manually grinding weed. A weed writers cramp.
by ccroni3 October 31, 2014
Get the Blunt thumbmug. by fearjam January 30, 2019
Get the Silver Thumbsmug. by BiggdadDphatsak May 20, 2021
Get the Kentucky Thumbmug. 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
Get the Rule of thumbmug.