guy1: isnt she dating a 20 yr old
guy2: yah shes so an underfile
by heart.break.breakfast. November 23, 2010
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something that is lacking - metaphorically and/or physically. (Term popularized by @thekatcurtis)
“This bag of chips is more air than chips - it’s UNDERFILLED!!”
by funwitfunny March 17, 2022
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