Usually one cool motha-fucka. He is usually a dark eyed, dark haired, tanned skinned, muscular man. They are usually really sweet and chill guys but, they can kick ass when its needed and they hardly lose. A Bertis can drive the sexiest girls wild, and shows them a good time. He is very flirtatious but once in a relationship, that girl is the only one for him. If you get one, keep em.
Look at that Bertis
Bertis is just a great guy and a good friend
by jamanfued April 25, 2011
Get the Bertis mug.
When something feels great, or when you are referring to a friend, it is Berti.
"Whatsup Berti?"
or
"That's Berti"
by Jiglo Svenson August 4, 2008
Get the Berti mug.
To throw up/vomit/be sick.

Often but not specifically after consuming large quantities of alcohol.
i.
Person at a party:

*downs an alcoholic beverage then lurches forward with their hand over their mouth*

Everyone else in the vacinity:

"DON'T BERTIE! DON'T BERTIE!"

ii.
Person talking about a party:
"...and he drank half a bottle of straight gin, then bertied in a flowerpot."

iii.
Person who feels sick:
"Eurghh i think i'm gonna bertie."
by Rosaliiie May 7, 2009
Get the bertie mug.
While having sex with a girl, stare at another woman in the room.
I pulled a berty on her and her friend.
by Djmm187 November 19, 2008
Get the Berty mug.
A derogaratory name for a homosexual/s usually linked to actors.

Reputed by John Sessions on an episode of QI to have come from a conversation he had with either Alec Guinness or Laurence Olivier?? with regards to a theatre company he had either worked with or was advising him (JS) to avoid.
(1) I've been offered the role of Hamlet at Sadlers wells

(2) Who with?

(1) the SDT

(2) oh they're an absolute fleet of bertie's
by ebuygum April 22, 2009
Get the bertie mug.
A Extra Large Poo that takes several flushes to get rid of.
A huge log, that sometimes has to be broken in half before it disappears.
Ive just done a "bertie" or whos left a "bertie"
by Markmcmcmc October 1, 2007
Get the bertie mug.