What is "ad-libs"

n. (plural of ad-lib English)

Ad-Libs is an improvisational comedy troupe based in Dallas, Texas. Combining improvisation along with video segments, Ad-Libs was conceived by Phil Larsson in 1986. Ad-Libs performs weekly shows at its 200 seat downtown Dallas cabaret style theater ( Ad-Libs Improvisational Comedy Theater) and tours across the country for corporate events and performing arts centers.