When you haven't done laundry in weeks, and the only underwear you left have to wear are back-of-the-drawer obnoxiously patterned/colored underwear that was likely purchased in your prepubescent years. When you sport such underwear, you at this time have what is known as a "lucky charm ass".
Her outfit is stunning, and it was pretty appalling when she bent over and I saw she had neon green unicorn underwear, a lucky charm ass if i'd ever seen one.

My one deal breaker is if the girl I'm hooking up with has a lucky charm ass. I want to feel like she's my age, not 12.
by sonicsbarefeet August 1, 2017
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The state of mind in which a teen male is charmed by the ass of a teen female. The teen will do anything for or around said ass.

Also see: Boob-Wooed
"I am NOT boob-wooed!"

"Then maybe you're ass charmed."
by UnitedsTatesoFwHatevah January 25, 2011
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Girl! You better be careful, if ur lucky u won't fall in love with another charming narcissist ass nigga like last time!
by #Used2BeNumber2 March 1, 2019
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