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Acronym for Internal Pants Bulge Boy. i.e. a boy who constantly has a bulge in the internal section of his pants ( just above the penis)
"ZOMG Did you see Fulvio's internal pants bulge?"

" Yeah he always has one, we should start calling him IPBB"
by vincecolosimo August 18, 2011
IPBB is an acronym for intensely perverted bored boys.
The IPBB group sends e-mails around in their distribution group that is totally lame and silly. IPBB's hace a great ability to waste time.
by Kilt_12 March 18, 2009