twofer/ˈtufɚ/EtymologyShortened form of two-for-one [deal], that is, two for the price of one (BOGO).nounSomething sold at a discount of two for the price of one.“I dashed into the mall; bought a gift; raced to the card store, snapped up a two-fer gift-bag special and was back in my car in 26 minutes. I could medal in power shopping.”Something that yields a substantial additional benefit; something that figuratively kills two birds with one stone.“Justice Clarence Thomas served up a twofer last week […]”The fashion of wearing long sleeves outside a short-sleeved shirt.A cabling device used in theatre, allowing two stage lighting instruments to be connected to one dimmer.