Someone who is sexually attracted to throats.
Throatsexual people are usually very attracted to fucking someone's throat or having their throat fucked.
For someone to be considered a Throatsexual they must be more attracted to throat-focused sex than regular sex.
(talking on the phone)
Joe: Hey, how's it going Jane?
Jane: We--ey--fa--sh--ta--
Joe: Whoa, Jane, I can't understand a word you're saying. You're strobe throating like crazy.
God, she was throating enough to kill! That wasn't no plain old BJ! I could feel them little rings deep inside her throat, man! Then she threw up, spoiled everything.