When a person ejaculates while having sex with a parter and it's absolutley fantastic............
Friend #1:Hey bro, how was your date last night? Freind # 2:It was ejacutastic
by outlaww March 18, 2012
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When something is so good, it makes you want to ejaculate.
Guy 1: I just got that new game!
Guy 2: Dude, thats ejacutastic!
by bucsfan1041 December 4, 2008
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When something is that damn good and you feel like your going to slightly have an orgasm over it.
Tommy: Just got new engine in my car.
Joe: Whoa shit, that looks amazing bro.
Tommy: Yea, its Fantastic !
Joe: NAH EJACUTASTIC BRO.
by ShiftingToms July 28, 2011
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