It's when you have to much coffee in the morning, leading to a substantial salt water flow down low.
Sitting in class, all the coffee I drank in the morning had caught up with me, leading to a dangerous amount of butt sweat, until I realized that I was sitting in a puddle.
by urbandictionaryranoutofnames July 24, 2016

Profuse sweating of the lower back that signals in the words of Dave chappelle "I had to take a dump, I had to take a dump immediately." If a dump is not taken, the lumbar sweats can lead to an embarrassing sweat stain on the upper but crack region of clothing.
lumbar sweats are going HAM right now
lumbar sweats are going HAM right now
Ben: dude did you sit on something wet?
Steve: Nah I gotta take a shit really bad,
lumbar sweats are going HAM right now
Steve: Nah I gotta take a shit really bad,
lumbar sweats are going HAM right now
by Steven18 December 4, 2013

A: Hey Tyrese, the 80's called and they'd like their garish tight cycling shorts back.
T: (humps A's leg) Don't be so frigid Alexandrei, SWEAT IT UP
T: (humps A's leg) Don't be so frigid Alexandrei, SWEAT IT UP
by Peepeeroni February 3, 2017

by kinno September 17, 2022

Guy 1: It’s fucking hot in here dude.
Guy 2: Well take off your sweater you shitbag!
Guy 1: Dude, I got sweater sweat!
Guy 2: Nice.
Guy 2: Well take off your sweater you shitbag!
Guy 1: Dude, I got sweater sweat!
Guy 2: Nice.
by Fucking Nig- July 19, 2018

Pillow sweat is when you wake up and your pillow is soaking wet, it could either be from crying, slobbering or sweating. Either way, if you see it on someone's pillow don't sleep there.
Nicole: I went over Bob's house and slept over the night, and when he woke up I saw pillow sweat on his pillow.
Lana: Ugh! He was probably crying.
Lana: Ugh! He was probably crying.
by butwhat101 October 12, 2015

Sweat equity is a great act of faith; it's chasing your dreams and working with what you have: yourself.
by Lil'BowPeep October 7, 2023
