An imaginary liquid used in automobiles (to make the blinkers work). This term is used as a sarcastic remark toward someone who knows ablsolutely nothing about cars.
by Peaches Witherspoon September 08, 2005

(btw i totally met a girl who fell for this)
a really good almost-real-sounding term to use with the intent of throwing off a ditz.
a really good almost-real-sounding term to use with the intent of throwing off a ditz.
Crystal: "My right blinker doesnt work."
James: "You're probably out of blinker fluid."
(later at auto zone)
Crystal: "I would like to buy some blinker fluid, please."
Clerk: "What the hell??"
James: "You're probably out of blinker fluid."
(later at auto zone)
Crystal: "I would like to buy some blinker fluid, please."
Clerk: "What the hell??"
by jackieshmackie April 17, 2006

Aggrivated Driver: This asshat keeps changing lanes without using his signal!
Sarcastic Wife: He must be low on blinker fluid, honey.
Sarcastic Wife: He must be low on blinker fluid, honey.
by Merkle July 22, 2008

Often heard on the CB between Truckers. If a driver has passed them and left a turn signal on, they will call up and tell them they are running out of "Blinker Fluid"
Hey that Bull Hauler that just passed the FreightShaker in the hammer, your gonna run outta Blinker Fluid.
by Wee Ph1l April 16, 2006

The liquid in one's vehicle which causes the turn signals to activate. When one's blinker fluid is empty, the result is the inability to use one's turn signals.
Joe: Damn! I almost hit that SUV that just turned into my lane!
Tom: She's just out of blinker fluid.
Joe: Oh, that explains it.
Tom: She's just out of blinker fluid.
Joe: Oh, that explains it.
by t_spread April 17, 2006

by John's mom April 17, 2006

A prank that parents play on their children when they’re old enough to drive. Blinker fluid/fuel is not real but is a common joke, most shop owners play along or will laugh at you.
“Run down to the auto parts store and get me some blinker fluid”, but when Billy went to the store the managers just laughed at him.
by Hardtruths January 02, 2018
