I. ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷ noun
Etymology: toast (II) + master
: one that presides (as at a banquet) and introduces the after-dinner speakers
II. transitive verb
: to serve as toastmaster at (a particular affair)
toastmaster a testimonial dinner
intransitive verb
: to play the part or practice the art of a toastmaster