Adjective
imba (comparative more imba, superlative most imba)
(video games, slang) Clipping of imbalanced.
According to the bio, “Shredheads celebrate the designation of Boise-Eagle as an IMBA Gold Ride Center.” Source: Internet
MYSTIC RIVER won the 2002 Dilys Award from The Independent Mystery Booksellers Association (IMBA) as the book member bookstores "most enjoyed selling" this past year. Source: Internet