__ Get One Free Is Also Known as a BOGO Sale

This page is the CodyCross answer for the clue below from Sports, Group 152, Puzzle 1 (Beach Volleyball).

Question is: __ Get One Free Is Also Known as a BOGO Sale

and the answer is: BUYONE

Word Meaning:

BUY — (transitive, ditransitive) To obtain (something) in exchange for money or goods.

Definitions from Wiktionary.