When three males have a threesome and they sit ontop of each other at the same time.
"Bro last night i had a triple decker pecker with CJ and Julian."
by Bingslongg January 24, 2020
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Sex move: when three men are having a threesome and the guy on the bottom is giving anal, the guy in the middle is receiving AND giving anal, and the guy on top is getting anal while his dick/her strap-on flops about like an epileptic fish.
Jerry, we’re gonna do a Triple Decker Pecker Tower later, you want in? If so you’re taking top
by Diddychimken December 27, 2019
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The highest form of house party fuck you like an upper Decker basically but instead it just shitting in the top tank oh someone's toilet you triple in that b****
Example

like if you're talking to some chick at her birthday party and everything's going good like you about play that vagina like a harmonica then her boyfriend shows up then and she starts to diss you out and act like she don't know you that's grounds for automatic upper Triple Decker so you run down to the gas station and fill up on Slim Jims and exlax and go back to the party and drink everything in sight mix it all together and then go to the bathroom and let it rip
by Simmens the strange June 08, 2018
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