A "tiki bar" is a fun and tropical-themed place where people go to drink and have a good time, usually decorated with bamboo, thatched roofs, and tiki statues. Full definition
Tiki rode a wave of popularity in the late 1950s and early 1960s marked by the entrance of Hawaii as the 50th state in 1959 and the introduction of tiki bars and restaurants around the continental United States. (en.wikipedia.org)