1 definition by 0n31n4m1ll10n

A gorgeous and amazing girl who you may think is a little weird/crazy at first but once you get to know her you'll see that she truly is and amazing friend who always has your back when you need it. Anyone who knows an Allyssa is a truly lucky human being
Person A: Dude Allyssa is such a good friend she helped me out with that problem I've been having

Person B: Dude I know right she is my BEST friend
by 0n31n4m1ll10n January 25, 2019
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