Some kid from Cartoon Network with flaming hair that has a talking dog, keeps breaking in to their sister's lab and always yells.
Johnny Test: TO THE LAB!!!
Me: Stop yelling.
by A Silly Gentleman May 29, 2014
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Seasons 1 - 3 were good enough.

Seasons 4 - 6 are the reason why this show gets so much hate.
A lot of people think Johnny Test is the worst shoe ever. Don't blame him, blame Seasons 4 - 6.
by Cynical Man April 25, 2022
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Johnny Test is such a good friend of mine. He sucks at pool, loves trail mix, and is hilarious. He also goes by John Cena. He is weird and wants to drop out of college because he is giving up. Tell him not to. He also is a momma's boy and a pussy. He won't let people play on his phone or use any of his items. He is super stingy with money. He has many friends.
Johnny Test, I don't want you on my pool team, you suck!
by Yinz November 9, 2022
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It's a Kids TV Show on Channel 58(cartoon network) 4 kids 7 & older
Johnny Test is an 11 year old boy,with 2 geinus sisters & 1 talking dog.
by Johnnytest123 July 23, 2009
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Obnoxious rabid assholes that take their hatred of Johnny Test to extreme levels. They won't stop making shitty hate art either.
Matthew Davis Media is a prime example of a Johnny Test Hater

"WE GET IT!! YOU HATE JOHNNY TEST!! STOP RUBBING IT IN OUR FACES!! PLEASE!!!!!"
by Cynical Man May 28, 2022
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adjective: Johnny Test
of only average quality; not very good.
causing irritation or annoyance.

of poor quality or a low standard.
not such as to be hoped for or desired; unpleasant or unwelcome.
"that tv show was such a johnny test''
by meko1432_ April 1, 2023
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