wipe out verb7 •To destroy (especially, a large number or complete set of people or things); to obliterate.Darth Sidious: Wipe them out. All of them. — 1999 •To physically erase (writing, computer data, etc.).nearly a year's worth of database records wiped out by disk failure coupled with lack of backups •To do away with; to cause to disappear. •To crash; to fall over or fall off (especially in board sports such as surfing, skateboarding, etc.).shot into the half-pipe but then wiped outA massive wave caused him to wipe out. •To knock (a surfer) off their board.A massive wave wiped him out. •(informal) To bankrupt (a person or company); to empty (a bank account); to erase (a bank balance).They tried hard to hang on, but the Great Depression wiped them out.Unexpected big-ticket expenses wiped out his bank balance. •(informal) To exhaust (someone); to tire (them) out.An hour of snow shoveling kind of wiped me out more than I expected. formswiped out · wiping out · wipes out