A portmanteau of the words 'bestie', a diminutive of 'best friend' and 'ex', meaning former partner/spouse.
Jim: So you how are you handling being single?
Bob: It's okay. We're still best friends.
Jim: She's still your friend?
Bob: Actually, she's more than my friend. She's my bextie.
by rxnxr May 5, 2010
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When you break up with your ex and by some miracle (after an undefined period of time) you find yourselves being besties, with sex never fully off the table.
Person 1 : I thought you broke up, why do you still hang out?
Person 2: We did, but she's my bextie now.
by BZ_BB_843 February 25, 2022
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