A penis that is so long it shows out of your shorts and it is skinny
Jessica; “ Oh my god did you see Bobs shlong diddly? “
Becky : “ No what does it look like”
by M4DL4DS February 9, 2021
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He talks a lot of smack about computers, but he actually knows squat diddly about operating systems or programming.
by Kolchak Jones March 9, 2017
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Any branch of the Scrum Diddly franchise that is situated outside of Dun Laoghaire
Claudia: Man I could really go for a Scrum Diddly's right now, there's one in my local Penny's
Jamie: Don't do it dude! that's just a Scum Diddly's their Scrummy Tups are gross
by Mando Wando June 14, 2022
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Girls can finger/get fingered until they can’t stand no more okurrrrrr
Boy 1- “Yo,, it’s Diddly-Do December,, imma go finger her diddly do until my finger breaks”

Boy 2- “I’m gay so imma finger my ass hole
by Devers November 4, 2019
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A phrase similar to destroyed , ruined , wrecked, gg'd. Simply put, the "thing" the phrase is being directed to simply means it's done.
"look at this misses throwing up on george street, she's fucking done dog diddly done deaded
by supremelobsterr April 10, 2018
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