elevator pitch

or el·e·va·tor speech

[ el-uh-vey-ter pich or el-uh-vey-ter speech ]
/ ˈɛl əˌveɪ tər ˌpɪtʃ or ˈɛl əˌveɪ tər ˌspitʃ /

noun

a brief talk or pitch intended to sell or win approval for something: a two-minute elevator pitch to a prospective investor.

Origin of elevator pitch

First recorded in 2000–05; from the idea of persuading someone while on an elevator moving between floors
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019