head exchange 

noun.

Definition 1. Derived from head change: the point where a stoner's mind goes from sober to high and feels a euphoric kick in the head; Head exchange is to mean the point where a stoner's mind on one strain of weed is changed to another state of high when smoking a different one.

Definition 2. See fellatio. (But where she sucks on the head of your cock just a few seconds more just before taking the rest of the shaft. bomb.com]

Stoner 1: Dude, you go from funny and chill when smoking OG Kush, to hungry and funny and chill when on Blue Bream.

Stoner 2: Must be the head exchange I get when we go from this strain to that one.

Stoner 1: Dude, hehehe, after your girlfriend was staring into the tip of my dick after she saw how big it was, shes also went into a bit of a head exchange, amirite ?

Stoner 1. Dude, you go from funny and chill on that OG Kush, to funny, hungry, and witty when on that Northern Lights.

Stoner 2: Bro, hehehe, your girlfriend went into a head exchange the moment she saw the tip of my dick.

head exchange by AntiKorperViral February 29, 2016

head prep 

The act of rubbing the penis head in between the vagina lips in order to moisten the gentleman's sausage for insertion.
Moist pussy dick sex insertion

"Hold on babe got to head prep"

head prep by RupertfL September 12, 2016

head dead 

when the head is so goddamn good that it has you dead.
Can cause you to jerk around, get the chills and just want some more head.

Also expect to make unexpected movements by the amount of pleasure caused from being head dead .

"Damn Nikki, you got me head dead".

head dead by firecock January 8, 2017

head of the turtle 

When you have a big shit that you've been holding in just poking out of your asshole

On the way back from the bar last night I had to shit so bad I had a head of the turtle

head of the turtle by Seabassroxursox May 26, 2017

head up rectum visualitis 

An attitude of superiority while being in a constant state of confusion. Or situational temporary feeling about making a mistake, I.e., hide sight is always 20/20.

I didn't see that coming, because I had head up rectum visualitis.

head up rectum visualitis by mministerGW3 June 6, 2017

head%20bin 

To break down the word , head refers to getting neck ( having ones genitals sucked). %20bin refers to the amount of nut you have in the "tank". So the term head%20bin simply is defined as , upon getting neck one nuts beforehand ,therefore lasts longer during oral sex.

"Yo bro , Ashley is about to give me neck for hours cause I have that head%20bin."

head%20bin by ovo_joel April 20, 2018

Head-buds 

A fuck buddy but only in an oral sex sense.

Ruth and Hank have been head-buds since 1987.

Head-buds by Gusbuster811 January 7, 2018