A particularly strong orgasm cause by watching Michael Jackson's sexiness.
Frequently caused by the You Are Not Alone music video, where all he's wearing is a sheet.
Michael: Hehehe... *grabs crotch and grins*
Girl: Ooooh.. MIKEGASM!
An orgasmic sensation created by watching videos, concert performances, fan videos, or thinking sexually about Michael Jackson. During a mikegasm, one usually feels horny and lustful; and has an increased desire to have sex with said person.
Oh, my God; everytime I watch Dirty Diana, I get a freakin' mikegasm when he rips his shirt off! Damn!