Otter

To use escort or gay subculture slang, "otter" means a thin or athletic man with hair on his chest, legs, or arms. It's in the middle of a "twink" (thin and smooth) and a "bear" (big, heavy, and hairy). Often looks masculine, but not always overly masculine like some "bears" You'll see tags like "otter," "hairy otter," and "slim bear/otter" in escort ads. Other terms for gay escort body types:

Bears are bigger, heavier, and have a lot of fur. Cubs are younger bears that are stocky but not always big. Twink is thin, smooth, and usually looks younger. Wolf is older, hairy, and male (mature otter or bear). Pup—often into pup toys or younger submissive types