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A mixture of lean and molly. Gets you fucked up. Once on the semmy, you can’t get off the semmy.
Semmy by OffThatSemmy January 4, 2018
Related Words
A person who has a consistency to tease others, or flake.
She is such a semmy.
Semmy by OvemYes? November 1, 2010
Short term for a semester. Most often coined by someone who watches nelk boys, hockey, or is a frat bro. It uses the same term logic as calling a celebration a “celly”.
“I am so hyped for this semmy! The parties and sorority girls are gonna be hot as shit man!”
Semmy by Blexican Cowboy August 19, 2021