Theoradical 

Theoradical: Is an idea or theory that by the normal perceptions of the group you are within, is far too odd, weird, freaky, or simply radical to be accepted by the group of friends. "Theoradical" ideas are usually spouted by paranoid, crazy or slightly mentally disturbed people. Also people who under the influence of drugs are often prone to saying "theoradical" ideas.

It can also mean an idea that seems too “off-the-wall” to be taken seriously. At the time of the idea, few wish to believe it can work. A theoradical idea can sometimes be proven, but not all the time.

Daniel: Hay guys I just got paid and think we should all go for a “little” fun. But since I don’t feel like picking where it happens, I just ask you guys to pick.
Davon: We should totally go to the mall or something like that.
Tommy: Or could party on the moon with a bunch of space chicks and giant robots from sony.
Daniel: Seriously man, enough of your stupid theoradical ramblings! Now could someone please bring a relevant idea to the table?

Theoradical by Cody Muxaoc May 6, 2010

Theoretical bug 

When you discover that your code is not giving the right results, not because there is any bug in your program, but because there is a bug in the theory on which it is based.

Theoretical bugs are rare but more common than thought. When you find one, your perception of the world improves quantically.

A more day to day example, it is when you realize something you never saw before, not because it was not there, but because your mental model of the world didn't include it.

case 1
JC: I've been trying to find the bug in this program all night, but its looks perfect. Don't know why sometimes is producing weird results.
Guru: Its time to chase some Theoretical bugs.

case 2:

Linux_user: The problem with microsoft is not that they produced bad programs, but they copypasted so much software from other people, that the outcome was a walking Theoretical bug. At some much extent that, when it crashed it means it was really working.

Theoretical bug by jcmid February 5, 2010

The Theoretical Plate Standard 

The Theoretical Plate Standard (TPS) is the certified bro measurement of bigness. Also known as the 1234, such an achievement requires a 1 plate press, 2 plate bench, 3 plate squat, and 4 plate deadlift. Brothers who can certifiably complete this challenge, are defined by bros around him as "the big guy." lifting weights science

It's been two years since I've been counting my macros and I still haven't reached the theoretical plate standard; I might need to go on gear.

The Theoretical Plate Standard by Dnom March 28, 2019

theoretical 

Something based on experience; a guess based on what you know.

Planet X was a theoretical planet that scientists thought existed. They mistook from a miscalculation in Neptune's mass.

theoretical by mr.mcswagsalot December 12, 2016

Theoretical Friend 

Old friends that you never really hear from anymore, apart from the occasional Text msg, Email or fleeting birthday card, that always contains one of the phrases: "we should meet up, hang out, do something, I'll call you..." but never actually make any arrangements. These are good on paper mates, those that bump up your personal sense of popularity but never actually see. Friends in theory.

"Are you kidding, Annie's not going to come, she's a Theoretical Friend..."

Theoretical Friend by KimberleyStrange July 16, 2008

theoretical high five 

A high five which does not actually take place. The THF is initiated, followed by a short pause and then the uttering of the word "nice" by both participants.

Girl: Theoretical high five!
*short pause*
Girl + Guy: Nice!

theoretical high five by Devin & Sarah January 10, 2008

theoretical cougar 

A woman of cougar age (usually divorced, separated or unmarried). She doesn't hunt younger men. Instead she lusts at them and mentions it to her close friends and/or relatives in private.

Mom (in a whisper): "Meredith, you see those 5 guys over there? They're hot! Aren't they?"

Meredith: "OMG Mom!!! Those guys are all my age!!!"

Mom (still whispering): "Yeah, I know. But I'd love to get with one of 'em. Too bad I could never tell them that."

Meredith: "You're such a theoretical cougar"

theoretical cougar by blacksburgcougee November 19, 2011