[ af-ter-noo-ner, ahf- ]
/ ˌæf tərˈnu nər, ˌɑf- /

noun Informal.

a person or thing that appears, flourishes, etc., in the afternoon: One of radio's favorite afternooners is a soap opera.
a baseball game or other event that takes place in the afternoon.

Origin of afternooner

First recorded in 1905–10; afternoon + -er1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019