Top definition
The peak of one's sexual excitation caused by anything that involves Jessie J and her ultra sexiness & amazingness!
"Omg did you see Jessie perform DILAD at the MOBOS?"
"Yes I think I had a Jessiegasm it was that hot"
by Jessiegasm October 17, 2011
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug