Hold your pot smoke for 3 seconds and exhale, because science bitches. According to Steve Liebke’s 2001 ‘A Cannabis User’s Harm Reduction Handbook,’ “Take small, shallow tokes or pulls. About 95% of THC in cannabis smoke is absorbed in the first few seconds so breath holding is quite pointless. All it really achieves is a far greater amount of tar being deposited in the lungs.”
Dude puff pass pass, your harshing the 3 Second Weed Rule noobie.
by bostonjerk June 5, 2014
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Originally used in basketball, often termed as lane violation.

For modern day use, it's for when you drop your food on the ground, but you say " 3 second rule!" as an excuse to say that your food remained clean.
"Yo hand me that juicy barbeque bacon burger"
"There you go bro.. *OH SHIT I DROPPED IT*"
"Pick that shit up, 3 second rule you remember?"
by zackoff3 November 4, 2022
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