Any injury occuring while enjoying oneself, e.g. bumping your head on the headboard, a sunburn from sitting at the beach, skateboarding accidents, poor sense of smell due to cocaine use...
Dude #1 - 'so she left scratch marks on you?'

Dude #2 - 'yeah, but it's a good times-related injury, i'll live...'
by jack swaggah July 11, 2010
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