Home : Online Slang : GTRDUN GTR | GTSY Tweet GTRDUN Meaning Get 'er done Type Abbreviation Rank ★ ☆ ☆  Uncommon Usage Online Only (chat, messaging, e-mail) Comments A "redneck" slang phrase that means, "just do it;" mde popular by Larry the Cable Guy. Updated August 15, 2013 All "G" Slang Terms Online Slang Home Print