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1.
NBILLT (pronounced "En Bee Ill Tee" stands for "Never Been In Love Like This," and it is used to describe an obsession that arises after a hook-up or first-time encounter.
1. Jennifer: "Thomas bought me flowers and cake... omg NBILLT!!!"

2. Diane: "I met this guy last night, and now I'm NBILLTing so hard!"

3. Max: "I saw Genie today and she's so hot... such an NBILLT!"
by sneakydick December 17, 2013