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1.
an expression of pleasure, not a part of speech -- A common female exclamation of pleasure that a porn queen shouts out while she's taking one or more cocks inside a variety of her orifices during coitus on the porn set. If the female pornstar wants to show her video/cd audience what a great time she's experiencing, she will usually shout this three-word expression out ten to twenty times during the extra deep strokes she is incurring during deep-cock penetration.

If she's taking one in the pink and one in the stink, she uses the same expression but increases the volume fifty decibels or so. Other common exclamations of pure sexual female delight by pornstars include, "Oh, fuck me, you dirty bastard!" "Fuck me DEEP!" "Fuck me with that big cock of yours!" "Fuck my tight pussy, you cocksucker!" or, maybe, "Fuck my dirty shithole, you pervert!" or the like.

The intent of any "Oh, fuck yeah!"-type exhortation is to add the special spice of female 'dirty talk' to the sexual events unfolding in the scene that she is participating in. By yelling out various expressions of emotional delight, she supposedly turns on the male star doing her and adds to the ejaculatory response supposedly experienced by her porno flick viewers, either male or female.
Fred: Boy, it looks like Bonnie Blowhard is really enjoying the dick she's getting.

Herman: Yeah, she's already yelled out "Oh, fuck yeah!" about twenty times in the last two minutes, so I guess she likes it.
by Edgar Lambert December 08, 2006
31 17
 
2.
A comon positive exclamation denoting great emphahsis.
Is that the truth?

"Oh, fuck yeah!"
by Renfrew December 11, 2006
19 6