discretion is the better part of valor 

A phrase meaning to not let courage outweigh good judgment; is the potential outcome worth the risk?

Kid (10 years old): I really wanted to punch that boy for what he said dad, but I thought his parents would probably sue us, so I didn’t.
Dad: Wise decision, son. Discretion is the better part of valor. I’m proud of you. What’d the kid say that made you so mad?
Kid: He said mom was a whore.
Dad: What?!... Why didn’t you beat the shit outta that kid!!

discretion is the better part of valor by |SaltyJack| January 12, 2019

Discrete Math 

1) A game played by mathematicians where the goal is to describe simple occurrences in the most complicated, confusing way possible.

2) Math that is done with discretion.

1) For all X1 and all X2, such that X1 and X2 are elements of the set of all real numbers, X1=X2 implies that F(X1)=F(X2). In other words, if you put the same number into your function that you already put in you are unlikely to get a different result.

2) Jack did not believe the waitress when she told him that his martini came to $9.37 after tax so he did some discrete math under his coat to double check her.

Discrete Math by Dan000001 January 13, 2011

Discretti 

Discrete graffiti, generally higher brow and/or to the point

I noted a fine example of discretti in my hotel room today, "Crusaders suck Hurricanes Hairy Balls" (two sports teams) was scrawled on top of a door frame.

Discretti by DctrAJ May 29, 2019

Post Discrete Math Stress Disorder 

PTSD or Post Discrete Math Stress Disorder is a mental health condition that ALU Computer Science students have after enrolling in CS for one term. IT's symptoms include unwillingness to attend classes, especially Friday morning classes.
It also has been reported that most CS students have switched to other degrees as a result of the condition.

The doctor said all the nightmares I have are a result of a Post Discrete Math Stress Disorder disease from all the discrete math assignments

Post Discrete Math Stress Disorder by ALU-Challengers November 8, 2019

discreet 

A word gay/bi men use to describe themselves in a cool way that they are closet cases and have no intention of coming out soon. This allows them to maintain perceived heterosexual privilege while engaging in their true sexual desires.

"Are you out?"
"No, I'm totally discreet man. I got a girl...she can't know about this."
"Ah, ok I guess I'll keep looking."
"Not into flamers anyway."
"Who says I'm a flamer just because I'm out?"
"Most are."
"Stereotype. You should really come out man."

discreet by Blueiris May 4, 2009

Discreet mathematics 

Discreet mathematics refers to the subtle study of mathematics. Discreet mathematics is characterised by furtive looks in maths textbooks disguised as pr0n and by secret maths lectures held in abandoned warehouses at midnight.

The origins of discreet mathematics can be traced to the 19th century, where young women interested in the mathematical and scientific subjects were unable to openly pursue such studies. Instead, they disguised their math textbooks as lifestyle magazines, and talked about mathematics in a secret code, called Polari.

This became unnecessary due to the total abolition of any form of sexism at all in 1964 by the Ghost of President Kennedy.

Discreet mathematics > pr0n

Discreet mathematics by kodiac1 July 3, 2006

Diskeet 

Cumming on your wife/gf/fwb without her knowing

I played diskeet with my wife last night - still doesn’t know

Diskeet by DEBlueballs June 10, 2018