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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after not drinking or smoking weed for a while and your buzz dulls you drink or smoke again using what's in your system to get you back to the buzzed state or beyond it
dude after not smoking for an hour i smoked again and was piggybacking off that first time.
by pathofopposites July 26, 2017
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Someone who gives their Stamp of Approval to something after someone else has already recommended it.

Originally from the TV show How I Met Your Mother Episode: The Stamp Tramp
Person 1: I just really like the new song by Fun.
Person 2: I have not heard it yet (than goes and listens to the song on YouTube)

The Next Day: Person 2: Have you heard that new song by FUN its one of my most favorite songs of all time.
Person 1: I just told you about that song yesterday. (Rolls Eyes) You are such a piggyback stamper.
by NPBear143 December 4, 2012
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A cost effective marketing strategy where two or more companies represent the other firm's non-competing product in various promotions or through referrals.
At the networking mixer, Mary the wedding planner got together with Jason the videographer and mentioned to him how trying out some "piggyback marketing" could work out well for both of them.

i.e., "I'll put a link to your website on my site, if you'll put a link to my website on yours."
by ZonaCat Hansen October 29, 2010
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When you overhear a third party talk about something and your uncreative ass uses it in your current conversation.
Overhears two people talking about Barbie.
Joe: Have you seen gigachad Ken in the new Barbie?
Peter: I heard the same fucking thing you did, don’t try to make this a piggyback convo.
by HighkickCross July 26, 2023
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This is the person who drives somewhat close behind someone else who is speeding so that the first person will hopefully get the ticket, but the second person can still speed.
I had to make it home really fast yesterday, so I became a piggyback speeder behind this guy in a Corvette.
by YourMom24981 June 15, 2009
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