This is a coconut shaped mug marked for Wilfred's Lounge in Napa, CA. It features their logo name between two swaying coconut palms. This Wiki-Wiki Coconut Mug was also used by Tiki Farm for other locations, including Clifton's Pacific Seas in Los Angeles and Tiki-Ko in Bakersfield, CA. "Wiki-Wiki" means "Quick Quick" and is one of several standard mug designs that Tiki Farm recommends for new businesses so they will not have to wait a long time for the roll-out of newly created mug designs.
Wilfred's uses this mug to serve their "Uma Ube" cocktail which contains white rum, cream of coconut, pineapple, and ube.