out-thicc 

When two things are "competing" to be the dominant thicc thing, especially when referring to thighs vs. pants.

Usually, one of the things (e. g. thighs) causes some sort of damage to the other thing (the material of the pants) because of friction, the thiccer thing staying intact and the other thing doesn't stand a chance at being thicc enough to withstand the wear and tear, getting holes worn into it.

Frick, I out-thicced my pants and now there are holes in the inner thighs.
I can't wear like half of my pants anymore because I out-thicced them.

out-thicc by ghost_ducky_ducky April 16, 2021

Thick out 

Another way to say see ya later or good-bye. Often followed up by saying "the thickest."

Johnny leaves to go to work and you say "thick out" and in some cases the other person will answer by saying "the thickest."

Thick out by i am muffinman August 13, 2010