Acronym for Sexually Educated Girl. The type of girl that has received a significant sexual education so that she avoid's all measures to avoid getting pregnant or catching an STD.
Dude 1: So shall we do it,
SEG: Yes, Do you have a condom? First I need to see the expiry date on your condom. Is it a Trojan or Durex, or Store brand? Where have you stored you condom, in dry warm conditions? Do you have lube? Is it water based or oil based? I think just to be sure, I better give you a blowjob with two condoms on.
Dude: Dayuuum girl, you a SEG!
SEG: Yes, Do you have a condom? First I need to see the expiry date on your condom. Is it a Trojan or Durex, or Store brand? Where have you stored you condom, in dry warm conditions? Do you have lube? Is it water based or oil based? I think just to be sure, I better give you a blowjob with two condoms on.
Dude: Dayuuum girl, you a SEG!
by TheMadFelcher April 18, 2010
by Truv January 13, 2021
Sex act. Both participants start in a standing position facing each other. They both raise their arms above their heads in a full stretch. One penetrates the other and they both lean backward forming a Y shape - a self balancing "segway" like structure.
by Lyle Plapp Phd. March 21, 2019
Short for segment, segamatron, seggie, segmeena and segatron (a variation on segamatron), a Seg is a creature of very small stature, likened to a hobbit, of JRR Tolkien fame. They feed on blackcurrant cordial and baked potatoes, and move around in a shuffling manner. They are extremely rare and have often had other animals, such as kia, the wife of the famous willow mistaken for them.
by Pete November 17, 2003
by gabbars January 30, 2011
Lame self-created nickname by a faggoty 12 year old and clung to throughout adulthood, as if it is interesting or exotic. Possibly copied from an obscure Star Track character or a monster from the early 90's Power Rangers.
Let's go to Segs! We can play video games and get fucked up like the 14 year olds we will always be!
by coo coo bird April 25, 2009