boat feeler Share definition Flag a squid type creature usually 100 feet long with 50 foot tentacles numbering about 200. they go up to boats and feel the hulls in 1989 a 98 foot boat feeler was caught off the coast of long island boat feeler by andrew November 27, 2003 0 0 Get merch Get the boat feeler mug. Buy Now — $32.95 See more merch