Definition

"Feel Me Up Boots"—shorter boots worn with the express purpose of subtly reminding an ex exactly what they're missing, combining practicality with psychological warfare.

Example Usage

She showed up to the party in those FMUBs, and suddenly her ex couldn't stop staring like a lost puppy.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=FMUB&defid=2420947)