honkin' adjective 2adverb 1forms 2 adjective2 •(US, slang) Emphatically or impressively big; really big. •(US, slang) Used as an intensifier.But that hasn't stopped U2 from assuming the mantle as the biggest, honkin'-est rock band in the world and running with it. — 1997 adverb1 •(US, slang) Very; tremendously. formsmore honkin' · most honkin'