lumbersexual UK /ˌlʌm.bəˈsɛk.ʃuː.əl/US /ˌlʌm.bɚˈsɛk.ʃu.əl/ noun[before a noun]1 •(slang) An urban man who affects a rugged, outdoorsy look, typified by plaid shirts and a full beard.From the rise of the lumbersexual, outdoorsmen's answer to the metrosexual, to the use of beards to sell anything from clothing to beer, beards are cool once again. — 2014 formslumbersexuals