Used amongst some youths in the UK as a new and growing codename for cannabis/weed.

Codename came about when trying to be discreet around others such as family etc.
-Yo Ethan those mintballs were dank
Ethan- yeah yeah gotta get more mintballs tomorrow
by RazzasFunBin April 10, 2018
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A person that always has mints on hand; The person that always has breath mints to share or give out; persons that sling mints.

Background: Friend and I thought of it and thought it was funny at the time.
Thanks Ray, you always have a mint when I need one, you are a mintballer!
by Brian Carmona June 5, 2004
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When a girl eats a mint then sucks your balls
Damn Julia ate so many mints and then she unzipped my pants and sucked my balls dry she gave me mintballs
by Stg2003 March 26, 2018
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