A user on a chatroom or forum who, for whatever reason, decides they're a moderator or admin, even though they're not. These users will yell and scream at other users who they believe are breaking rules, telling them not to break said rules. They will often call on the real moderators and tell them how to deal with the supposed rulebreaker. These users are probably 10-15 years old and have a bit of a superiority complex.

These users think they mean well, but are actually just a giant pain in the ass and act as though the real moderators are incompetent. This often involves freaking the fuck out over the SLIGHTEST breach of the rules - or often when there is NO breach of the rules.

Often, the user is simply trying to get promoted to being an actual moderator. But what happens 99.9% of the time is that they get banned themselves. What is 110% certain, however, is that this user will NOT be promoted.
User on chatroom: Oh shit
Backseat Moderator: NO CUSSING!!! MODS, BAN THIS FOOL!!! BAN HIM!!! HE CUSSED!!!!!
Real Moderator: Cussing is allowed on this chatroom, dipshit.
(Backseat Moderator has been banned by Real Moderator for being a giant pain in the ass)
by Lefty Power 123 December 17, 2019
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To have sex in the rear of a car.
Wonda Wonderpig was was doing the backseat booty.
by I, Wreckerrr November 17, 2016
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Anyone who stands over your shoulder as you use the internet, directing your internet(s) navigation

No, I don't want to check out this totally amazing video on youtube. Stop being a backseat surfer douche bag.
by Ardouche January 28, 2008
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It is when you are in the backseat of a car and throw up into the pouch on the back of the driver's or front passenger's seat and then smack it, sending bile-filled vomit all throughout the cabin.
"Dude, why is Pepe pissed at you"
"I was hammered last night in the back of Don Pepe's car so when I had to vom I gave him a Backseat KamiKaze."
by Dunham From Down Under March 25, 2021
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When you tell someone how to cook something or tell them you did something wrong.
“Aren’t you gonna flip that egg?”

“Don’t tell me how to cook in my own house.”

“You’re supposed to dice them, know, scramble them.”

“Stop backseat cooking.”
by GGPlex October 13, 2022
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Anyone who sits behind a someone who is browsing the Internet while continuously instructing them on what to click on or what to type into the address/search bar. Most appropriately applied when the advice or commands are unsolicited and/or unwarranted.
Matt grew increasingly frustrated with Patrick, acting as a Backseat Browser, when he wouldn't stop telling Matt what links he should click on next.
by YoungKenC February 18, 2009
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watching someone play a game, remarking on every move (positive or negative). (happens when multiple people share a computer)
boy 1 - boy 2 stop backseat gaming
boy 2 - u play like shit...im helping
boy 1 - cool.
by dj seagall March 31, 2006
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