Tuna sub backwards is "bus a nut". Men use backwards tuna sub when they're too ashamed to admit during sex that they're going to climax much quicker than they had previously thought.
Johnny: "Oh no! I'm about to backwards tuna sub!"
Jenny: "It's only been five minutes! Pull out now, you loser!"
Jenny: "It's only been five minutes! Pull out now, you loser!"
by ( ͡°╭͜ʖ╮͡° ) June 2, 2016
Get the backwards tuna sub mug.by BeefleIron June 23, 2011
Get the vertical tuna sub mug.When I get home tonite, my wife will be orgasmic when the ol' forekin submarine pulls into tuna town for an extended stay.
by weave March 24, 2003
Get the foreskin submarine is pulling into tuna town for a three night stay mug.by Naimoli45 February 15, 2021
Get the Subway Tuna mug.Tunasub was created by some filthy minds on the twitterverse as an allusion to masturbation. Backwards it spells bus a nut. Used as an incognito way to announce that one has or has the intentions of masturbating.
by Annastasia Beaverhausen November 1, 2011
Get the Tunasub mug.When you're having sex and your partner yells "tunasub" before ejaculating and begins tickling you uncontrollably.
Yo man, me and my girl were having sex and right before I busted my nut she yelled "TUNASUB" then started ticking me. I swear man, she loves tunasubbing me more than she loves food.
by Dick pouncer December 10, 2016
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