The thrusting of one's tongue in a matter not unlike what can be seen in typical pornography. The tongue is stiffened and is used quite excessively and with no rhyme or reason. Sometimes the head of the giver may move back and forth or up and down to accentuate the "passion." Rarer still is the little-known but not completely unseen circular pivot. Generally the person providing is extremely into the act, while the receiver is absolutely disgusted.
There are some cases in which a person who is an otherwise excellent kisser will get too caught up in the moment during sex and suddenly slip their partner the porntongue. This just plain sucks.
"Man, she slipped me the porntongue yesterday and I malfunctioned."
"Listen John, your porntongue is disgusting and I am leaving you."
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. PenguinBooks,1992. p. 38)