action ad hoc ad hoc measure ad lib ad libitum ad-lib ad-libbing alternate alternative answer arrangement artifice backup band-aid bung check valve cock contrivance cork counterfeit countermove coup course of action demarche dernier ressort device dodge dummy effort emergency equivalent ersatz expediency expedient extemporaneous extemporaneousness extemporariness extemporary extempore extemporization fake faucet gimmick imitation impromptu improvisation improvisational improvisatorial improvise improvised improvision improviso jury-rig jury-rigged jury-rigged expedient last expedient last resort last shift lid makeshift makeshifty maneuver means measure mock move off-the-cuff offhand peg phony pin pinch pis aller playing by ear plug pro tempore provisional proxy recourse refuge reserve resort resource rough-and-ready rough-and-tumble sea cock secondary shake-up shift solution spare spigot spike spile spill step stop stopper stopple stratagem stroke stroke of policy substitute tactic tap temporary temporary arrangement temporary expedient temporary measure tentative token trick trump unrehearsed utility valve vicarious working hypothesis working proposition