When a man who is not too smart performs oral sex on a woman during her menstrual cycle.
Alexander went down on Kristy the other night when she was on her period, it was like eating a jelly donut.
by ILRedDragon May 13, 2017
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Another way of saying you popped a girls cherry! Or when a cherry gets popped and the viganal area is all bloddy is called a "Jelly Donut"
Yeah, last night I gave your sister a "jelly donut"
by Jmac672267 June 23, 2015
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A Japanese Sushi called 'Onigiri'. The reason why onigiri is named Jelly Donut, is because of Brock from Pokemon, who originaly thought a onigiri was a Jelly Donut.

Yes. Yes. Just Yes.
Pokemon.
Brock: ITS A JELLY DONUT!
Ash: Brock, that's a onigiri.
by Sylimus0 December 09, 2015
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