cooltrain 

An entity with flowing with so much(or overflowing) coolness that its coolness is continuous. Coined by the famous computer hacker " el_hax0r ".

Damn yo! This movie is cooltrain!

cooltrain by Enter your name here August 2, 2003

coombrain 

A person who excessively masturbates to the point of frying their own dopamine receptors.

Friend 1: Hey did you see Friend 3 accidentally leaked his PornHub account?
Friend 2: Yeah, he has over 2k+ videos watched. What a coombrain.

coombrain by MonasThighs January 31, 2021

John Coltrane 

Quite possible one of the best jazz musicians ever. Played with miles and McCoy Tyner.

Start out with blue trane.

John Coltrane by 10 December 26, 2004

Caltrain Simp 

A simp for Caltrain, usually pretty stupid.

Metra Person: Fuck Caltrain Simps!

Some other train person: I agree with this statement.

Caltrain Simp by Caltrain Sucks February 23, 2021

Coolering

to manipulate your schedule to maximize your time off work

How did Bryan get so much time off work? Well he has been coolering his vacation days with regular days off.

Coolering by whosurdaddy358 April 28, 2017

Caltrain 

Some jackass railroad in the San Francisco area that some railfans mega simp for. In fact, the railroad doesn't even simp as much for itself.

Example
Caltrain Simps line up at the station to foam for F40PH-2CAT 914.

Caltrain by JulianRailroad October 14, 2021

cooldrink 

South African English word for softdrink (UK)/Cola, Soda(US) which may include fizzy/carbonated drinks and juices. Also known as 'coldrink','cold drink' or 'colddrink'. If you ask for Soda(US)in SA, you'll be served soda water.

I'm going to get some cooldrinks for the braai (SAfrE for barbeque).

cooldrink by Lino Goncalves January 10, 2008