Backstage: Improvapalooza's 7th year packed with 'explosive creativity'

heliumprov (he·li·um·prahv) n. when you suck in helium and proceed to perform improvised comedy, colloquially known as "improv." Just some vocabulary you might want to know as you gear up for Washington Improv Theater's seventh annual Improvapalooza. "It's fast and loose," said Dan Miller, WIT's external relations director and the person who explained to me what "heliumprov" entails.