Momentum Thickness

A fancy term in the field of fluid mechanics that really just describes the boundary layer momentum thickness. No one really knows what it is, what it does, or how to use it - not even the teacher.

Boy 1: "Wow! look at that momentum thickness"
Teacher: "What is that?!"

She thick

This is an expression that means a girl or woman is a little curvey. She might have larger (or thick) thighs, Good ass, and big boobs, but she is not fat or overweight. If you get called this, it’s a good thing.

Ex: Ooooo boy, look at that girl, SHE THICK

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thick boy

A guy who is not fat or skinny, but well proportioned with bigger legs, ass, and arms. Often referred to as “stocky”.

Those skinny boys don’t have enough meat on their bones to love you like a thick boy can.

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are you thick

british saying meaning, "are you dumb?" said when someone says something so unbelievably stupid that you need to ask if they're thick in the head.

"mexico sells avocados, right?"
"uh, yeah?"
"well, when trump builds a wall, where are we supposed to get avocados?"
"....are you thick?"

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thick-skinned

not easily bothered by things; not really all that emotional or sensitive

Skyler was very sensitive.. so she wasn't thick-skinned

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Rollin' Thick

The plural of roll thick. A large amount or a group of people of the same association.

"Damn babe, the cops are rollin' thick tonight."
(after seeing the 5th cop car within 5 miles)

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thick face

Shameless, no social etiquette

1. Ella just filled her to go box before others have had a chance to get their first serving. What a thick face!
2. Ella just stuck her fork in my food and took it while asking ‘can I try some? Thick-faced bitch!