Smooth Endoplasmatic Reticulum. Regions of  Endoplasmatic Reticulum that lack bound ribosomes. Sometimes called transitional ER because they contain ER exit sites from which transport vesicles carrying newly synthesized proteins and lipids bud off for transport to the Golgi apparatus.
by heatcliff April 2, 2005
 Get the SERmug.
Get the SERmug. buts sers..
what happened?
what happened?
by londinnniooo :) January 1, 2009
 Get the sersmug.
Get the sersmug. "Ser" is what I have to call the cadets who are part of the Nights of the Round Table as I kneel before them and ask "May I suck your dick?" See "Nights of the Round Table"
by USAF Cadet October 25, 2020
 Get the Sermug.
Get the Sermug. It's an abbreviation for "Servus", meaning "goodbye" or "cu" in European (mostly german, swiss, austrian) chatrooms, mmorpgs, etc.
by janwildegans December 30, 2008
 Get the sersmug.
Get the sersmug. by Joshie Face January 28, 2008
 Get the ser sermug.
Get the ser sermug. I'm getting married!
SER?!?! That's awesome!!
I accidentally kissed your brother.
Ser?? I'm gonna cut you!
I lost 5 pounds.
Ser dog? thats hot!
SER?!?! That's awesome!!
I accidentally kissed your brother.
Ser?? I'm gonna cut you!
I lost 5 pounds.
Ser dog? thats hot!
by kikalicious February 26, 2008
 Get the Sermug.
Get the Sermug. 1. Spanish for "to be"
2. a super duper sexy ass sex kitten with a sexy ass and sexy underwear
3. the most wonderfully complex woman I will ever meet and the core of my very being
4. owner of the greenest perfectest eyes
2. a super duper sexy ass sex kitten with a sexy ass and sexy underwear
3. the most wonderfully complex woman I will ever meet and the core of my very being
4. owner of the greenest perfectest eyes
by J.C. R. Lord May 29, 2004
 Get the SERmug.
Get the SERmug.