1. one who has had sex with several people or simply a lot of sex.
2. a vagina or penis that has been burned from friction, specifically by overuse in sexual activity.
do you smell some burnt tuna?

Jerry's been a burnt tuna since junior high... in fact, I think his fish might look fried.

oh lawd that drunk grrl was just rubbin' her burnt tuna against the whole party for hours.
by spinez June 7, 2010
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