What is Rusty Crusty.?
1.
The build up of brown malicious content in your underpants. Once the phenomena has grown bigger than your fist set your underpants down upon the radiator and let them dry. Soon you will be using your crust for many household tasks.
Guest: Hey this is some realy good cake, The chocholate sprinkles are fantastic.
You: LOL. Your Eating My Rusty Crusty.
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when you pump your woman from the back (preferably anal) and while youre piping her, you cut your dick off, leave it in her rump and wal..