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A fancy way of saying when a guy blows his load and feels like a million bucks, but it was actually a messed-up typo from some dumb software that thought 'ejaculation' was 'jackelation'.
'I just had the best jackelation of my life!' said my brother after he finished his fifth pizza and a whole bag of chips.
My friend’s dog had the worst jackelation ever, just a sad puddle on the carpet.
My dad said his jackelation was so good, it woke up the neighbors.