OTB
n.— «
The OTB line of boots and topsiders uses footwear technology developed for high-performance boat shoes worn by U.S. Navy SEALs, according to OTB Footwear, of Scituate, Mass. OTB stands for “over the beach,” navy parlance for sandy delivery.
» —“SEAL inspired deckwear available in 5 styles” by Mark Rutherford CNET News Dec. 10, 2008. (source: Double-Tongued Dictionary)