Crusty Musty Dusty Rusty

A "roast" used by Roblox kids who can't roast.

Person 1 and Person 2 have an argument
Person 1: *comes up with a good roast*
Person 2: Shut up you crusty musty dusty rusty whatever

by Maxgamer345 July 13, 2023

Crusty Musty Dusty Rusty

Someone who has never touched soap, doesn't know what a toothbrush is, and is usually a discord/reddit mod, or a snowflake keyboard warrior on twitter.

Get your crusty musty dusty rusty hands off me!

by Light Yagami aka Kira June 20, 2023

crusty musty dusty gusty rusty

inferior (rhyming with -usty, with the phonemes: /kr/ /m/ /d/ /g/ /r/.

Firey Speaker Box, BFDIA 7: "Don't come to me with that crusty musty dusty gusty rusty not at all trusty mess of a loser chamber."

by hydorus shui October 7, 2023

crusty musty dusty and rusty

a gen-z slang, used as an insult. may be used in any combination you like.
usually used by teenage girls to express how musty your ass is

how to use crusty musty dusty and rusty
"hi"
"get yo crusty musty ass out of my face"
"??..."
"you know what you did you rusty dusty-"
"SHUT UP YOU C R U S T Y M U S T Y D U S T Y R U S T Y A S S"
".."

by hellokityy? March 4, 2023

Boston Rust Crust

Hard, dried up jizz on the rim of the booty hole from the night before.

Girl... you gotta take a shower first! You got some Boston Rust Crust around your chocolate starfish from last night!

by RichTheRedn3ck August 13, 2024

rust in my crust

When you are a very crusty kid and you take a shower and get left out. Now you have rust in your crust.

Person one: Your crusty you should take a shower.
Crusty kid: yeah I should. After i'm going to play outside!
*later*
Crusty kid: Oh no now I have rust in my crust because I was out too long!
Person: Yikes! You should pour coke on that.

by ijgfiu davhaj February 25, 2019