When two bros are stationed at separate military bases, but are attempting to get stationed together.
Dude, when we base-up we'll get into all sorts of shit together.

I'm telling you, we're gonna rip it up as a wingman duo.
by D audi February 5, 2012
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To burn marijuana with one or more people.
Jeff: Hey Billy you work today?
Billy: Nah man.
Jeff: You tryna base up?
Billy: Yee bub.
by Base Up Lord May 13, 2016
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Feeling good , feeling yourself !
Last night I was so based up .

I'm based up .
by Davjenn21 October 29, 2015
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To 'Base Up' refers to one of three things.

1. The application of hand sanitizer (from the base to the tip, hence the name) to ones genitals before or after a particularly questionable bout of intercourse (though a post-coital 'base up' is less likely to result in unwelcome friction).

2. In reference to the sexual encounter itself, whereby you engage in risky business and will likely require the application of 'Base Up' in the near future.

3. As a noun referring to the sanitiser itself.
"I didn't use a condom, better base up"
"Should we base up before going to the clubs?"
"Who used all the base up?"
by Power Wine January 1, 2012
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When a girl can/should get to the base of ones cock
Samantha base me up
by Fizzle87 February 12, 2016
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The Art of basing up involves smoking, watching Adam Sandler movies/MTV reality, and ordering uber eats. Basing up for longer amounts of time earns more respect among the base up community.
‘Are you basing up at ours tonight?’
Yeah bro, ultimate base up tonight’
by Base-Up Maestro May 1, 2021
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The act of sitting and doing nothing for a whole day, watching bad tv and watching Adam Sandler movies.
Sayin, you basing up at ours tonight?’
by Base-Up Maestro May 1, 2021
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