The need/anticipation for penetration and/or the excitement to be "dicked down" by an appealing individual thats been leading you on all night.
"Giiiiiiiiirl! That dark chocolate man been giving me that pre-weiner all night. I can't wait to get back to his mom's house"
-Adverb- "This fuck boy been pre-weining me all night."
-Verb- "Hey dude, two tequilas, I'm about the pre-wein tf out this ho"