The act of joining something that already exists.
Piggybacking on Alex's release.
by really_nevah April 25, 2018
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When you boof using someone else's boof tool. (Generally frowned upon)
Don't forget to bring a boofer, otherwise you'll be piggybacking by the end of the night.
by BoofatoriumRVA October 5, 2020
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The act of masturbating to pornography behind someone else who has no idea you are there.
Tommy was spanking it to Assaconda, not knowing Chuck was behind him, piggybacking.
by JohnnyInterwebs June 25, 2010
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Taking advantage of the roommate dish-washing routine.

When your roommate has not yet washed their pot or pan, and it is still clean enough to swish water in and cook your own meal. You then leave it where you found it so they can wash it.

Only legitimate if the roommate is unaware of your use.
I've been piggybacking Sarah's pasta pot for a week, and it hasn't moved. I'm pretty sure we're just piggybacking each other at this point.
by HahaOwaitJustKidding March 8, 2011
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The act of requesting someone as a friend on a social media site, who is a mutal friend of one of your friends only for the sole purpose of snooping and being nosey on their profile.
When your girlfriend/boyfriend has a friend and you think that friend may possibly want to be with your mate, so you request them just so you can check out what they do on their profile. This is considered piggybacking.
by Miss D-nice December 30, 2011
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Using your neighbor's wireless network because you can't afford your own.
At my midtown apartment, I piggybacked off the chick next door for months, but when I moved I had to get my own internet service.
by Suzanne B June 3, 2009
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A confusing act involving two or more men identified as being done wrong.
"What are you doing mate?"
"Piggybacking"
"You're doing it wrong"
by Growden September 11, 2016
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