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Verb: To go on the lash without any thought or consequence for the morning after.
Feeling a bit rough this morning, I was on the leeson last night!
by thewiggler September 18, 2013
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A cool person who likes sports and gets called weird by a lot of people
A nice friend who can be annoying but funny
If you are annoying or funny at the same time You are a leeson
by Jagh Bardett November 15, 2017
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