a male whose personal style evokes a hobbit from the lord of the rings trilogy. may include, but not limited to: long or unkempt hair; scraggly or patchy facial hair; a relaxed disposition; having very close (but explicitly non-sexual) relationships with other males; frequently indulging in food, drink, and smoke.
"check my flow, i'm a lax bro. going out with my brohams for a sesh."
"you look very frodosexual to me."
"dude, you haven't cut your hair or showered."
"yeah, i'm going for that frodosexual vibe."
a friend who inadvertantly cockblocks you when hitting on women by failing to engage your target's friend, and instead aims for the very girl you are targeting. usually ends with you both leaving empty-handed.
can also describe any so-called wingman who actually makes your chances worse, rather than helps.