Someone who notices your underwear when they appear above the waistline of your pants and comments on them.
"That creepy guy said he liked my underwear...what a perble"
by De|V|oN February 24, 2006
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Perbly is slang for "performed superbly".
Her rendition of the song was perbly. His delivery of the joke was perbly. That's perbly.
by j4yd33 February 19, 2017
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