Top Definition
A person you are obligated to be friends with solely because they are friends with your friend.
Clay is a complete and total step friend. If he wasn't going out with Kelsey, I would've probably beat the crap out of him already.
作者 samiblack 2010年4月25日
A person who is friends with your friend that you start making out regularly so they are like your step-brother or step sister.
"Is she your friend once removed?"
"No she is my stepfriend."
作者 Stepfriend420 2014年11月29日



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