Someone you throw paper airplanes at, perform as a Tourette's child for, compliment on her dress and say you have one just like it (if you are male), and generally confuse and irritate. The ultimate goal is to either make the substitute break down laughing or reveal his/her shocking brain-dead-ness by convincing him/her that you really do talk like that.
"Wow, that sub we had in history was wearing a belt and suspenders."

"I sorry my acc-SCHENT. I haff P H D."
by iglaurah October 7, 2005
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Core language from High Wycombe, England.

Verb: 'to sub'
Meaning to go to Subway.
Colin: "Let's Sub it."
Lurse: "Blef."
or
Saxon: "I'm Subbing it."
Lurse: "Blef."
by Simjob March 30, 2005
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severely underdeveloped brain
"sub to my channel";
"sup." "sub.";
"your performance was suboptimal."
by nex_cz February 10, 2021
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Many desperate YouTubers with fewer than a thousand subscribers on their channel will subscribe to any channel just to gain an extra subscriber in exchange. This is regardless of how terrible the videos are. Unfortunately, some YouTubers who do have great talent, creativity, and wonderful video quality sink to the bottom of the Mariana Trench as hundreds of boring videos surface the Pacific islands.
Sub 4 Sub? I can't wait to see the latest crap!
by Gio Bandito February 25, 2015
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The act of appearing to order mixed drinks while only consuming the mix. Used to get an advantage over someone in a drinking contest or to wear down someone's inhibition.
Tom was subbing drinks all night at the bar. He really got Jane drunk and was good to go all night.
by Allana & Clifton March 17, 2006
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To thoruoghly enjoy the sub frequencies provided by heavy 808 Bass in a Song usually found in hip hop trap or EDM music.
This song is Fyeee I Subbed.
by jrios_musiq June 20, 2018
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or "sub4sub" / "sub for sub"

Abbreviation for "Subscription for Subscription" on video-featured websites such as "Youtube.com".

Sub 4 Sub is a request to subscribe to your profile with a guarantee to subscribe to the subscriber's profile.

Essential for nerds with small self-confidence.
sub 4 sub any1 ? please rate ma new video!!!1
by Lex Hundt May 14, 2008
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