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1. Sexual relief caused by the warmth and snugginess of a blankie
2. The act of using a blankie rather than a tissue to masturbate
"Omg this blankie is so warm; I think I'm having a blankiegasm"

"Dude I totally walked in on Joel having a blankiegasm this morning using his favourite childhood blankie D:"
by Cuppycake94 May 23, 2010