A person who when in engaging in oral sex with a man, sticks the penis so far into his/her mouth that the penis touches the back of the throat causing the person to gag.
To plow a gagger is slang for snorting a large line of Cocaine or Crystal Meth. Plowing comes from the size of the line being too large to snort at a normal speed so the user accidentally 'plows' the line with the straw, moving the drug rather than snorting it up the tube. Gagger comes from the action of gagging that is often associated with snorting a line of this magnitude.
When a woman or man is giving you a blow job and you take her hair (if long enough) and tie it around your waist without her knowing. She tries to back off in order to take a breath, but can't. So she gags on your penis.
Someone giving you a blow job and you secretly tie their hair around your waist so they just gag on your penis. Therefore, a wrap around gagger is occurring.
A relatively large amount of a powder substance, usually cocaine, that when inhaled will give the inhaler a choking sensation due particulate matter irritating air passages in the troat and lungs;
"God damn, god damn! I almost fuckin' puked off that gagger I just ripped! But I'm geeked of my ass now so its all good."