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Betraying your partner, disrespecting their trust. Being disloyal and not being honest. Cheating.
Kean was unfaithful, he was flirting with other girls behind mya's back
by RoastingNiggas November 03, 2015
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When a he or she is obviously sleeping around behind their significant others back.
Normal guy: Hey who were you talking to on the phone?
Khaled: Oh, just my girlfriend. We met on vacation.
Normal guy: Bro, I thought you were married.
Khaled: I am but whatever bro .

Normal guy: Bro, that's unfaithful
by Itsmemartyo January 09, 2019
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