When something or someone is up your arse.

It can be literally or figuratively.

If someone is tailgating you they are up your date.
"This bloody Ford Ranger is driving up your date man."
by SawaDough June 5, 2022
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Your dick will be soft as shit. Most use in behaviors
Ayo stop smoking it will shrivel up your dick.
by bigdickivan September 19, 2022
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You've always waited for this moment but you never had the occasion, now you do
Oh where are you sisteeeer, its timeeee, today is beat up your sister day
by Martichucho August 7, 2022
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what all teenage and young adult men ages 14-22 (or so) need to do if they want to avoid embarrassing pda moments.
Not only do our young men need to know what shack up with your girlfriend actually means, but they also need to learn what decorum is and not insult their parents' values.
by Sexydimma January 8, 2017
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Boy: "So, will you see me naked?"

Mom: "No, I'll just cut a hole in your underwears and stick the thermostat up your brown."
by ljak November 23, 2021
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A phrase used by SoCal bros to call out someone who obviously has no idea what they're talking about. Usually when talking about dirtbikes/cars/beer pong rules
Dumb Kid: Dude, my mom's Toyota Tercel probably has like 450 hp or something!

Normal Kid: Broseph, you need to go check up on your syllabus.
by nkssss November 2, 2010
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Slap up your body is the sound you make when you riding your man dick
Slap up your body when you riding my dick
by Bigbadtygyalgoodevenin June 12, 2022
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