1) A person who likes the Show Stargate - SG1 and/or particpates in Stargate Fandom

There has been some discussion as to where the term orginated, the general opinion is that it orginated in on the newsgroup alt.tv.stargate-sg1 In a discussion as to what stargate Fans are called. The term was fully cemented into Stargate fandom when the forum Gaters.net was set up(This forum as a branch-off of SG1.net when it closed down, SG1.net Was founded by the same person (Sean Fitzgibbons) who founded alt.tv.stargate-sg1.
The term also reached *Offical* status when Brad Wright(Executive Producer) said fans call themselves "Gaters", on one of the DVDs
I am a Gater
You are a Gater
We are Gaters
by Kaso August 6, 2004
Get the Gater mug.
I fluffy dog like creature that can’t seem to play hide and seek properly without a tragic accident.
Jeff: Hey guys wanna play hide and seek!
Karen: Yes but Gaters it!
Hail: Yeah man I’m ready!
Sarah: im the queen of hide and seek!
(It all ends in tragedy)
by Gater himself- May 23, 2021
Get the Gater mug.
A fan (enthusiast) of the Stargate franchise (Stargate movie, Stargate SG1, Stargate Atlantis, Stargate Worlds, etc)
Gaters are waiting for the new season to start.
by Jacster November 21, 2008
Get the Gater mug.
1a. a person who is a fan of Stargate, either the movie, the TV show SG-1, Stargate:Atlantis, or all three. (or just two out of the three.)

1b. a member of a secret bulletin board hidden in the depths of the internet. This bboard...well, lets just say...
I BELIEVE PRES DOC IS TEH SEXIEST MEMBER OF TEH FORUM!
o.0
by aya-kun March 24, 2005
Get the Gater mug.
T3h poster of the GAT, looked up to as a g0d
GATers pwn j00 n00bs!
by MonJoe May 16, 2003
Get the GATer mug.
March 15:
A day where Gaters everywhere praise Gater the CANT-play-hide-and-seek-dog
Like hell it’s My birthday PRAISE ME MORTALS OR ELSE I SHALL DOOM SARAH
Jeff: hey today’s Gater Day!
Sarah: what’s that?
Jeff: it’s a day where you celebrate Gater.
Sarah: and who’s that and why the hell should we celebrate it?
Jeff: just search it up on urban dictionary..
by Gater himself- May 23, 2021
Get the Gater Day mug.
A person who is obsessed with Bill Gates, and will constantly talk about him. Which gets very annoying.
DUDE! That stupid Bill Gater wont stop talking about Bill Gates!
by Bdpimpin94 July 30, 2009
Get the Bill Gater mug.