After you've shagged your missus on a hot Summer's day, you're sweating profusely about the anal passage. You take a good swipe to clear the salty liquid, then fling it in the general direction of your partner's face. Hey presto, your bum's fresh.
You better go wash, love. Your boat race stinks but at least my bum's fresh
by ShittierJokes November 2, 2017
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A word used for people who have fresh clothes but don't buy them, and steal them!
"Yo how much was that hoodie?"

"Free if you're fast enough!"
"Oh so you're a fresh bum"
by BigPhatLubbet February 28, 2020
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