To check the neck and throat area for the presence of an Adam's apple. To verify the presented gender was not altered to be conceived a different one. (ie: Transexual, trans)
I had to throat check this bitch earlier. Thought it was a hit blond but that voice was deep. Grabbed that bitches throat, No lump. She thought I was just playing rough.
Something men should do when talking with a woman in a bar. You need to check the throat to make sure they are a woman and not a man. If you feel an Adam's apple, it's a man, not a woman. Must be subtle when doing it, as not to offend the lady. It could save you pain and embarrassment later.