a modern endurance sport, consisting of swimming, cycling and running, in that order.

n. The birth name of somebody who has changed their name. Most commonly attributed to trans people, but can be attributed to any person who has changed their name. (sometimes written as two words: dead name)

v. 1. To call somebody by their deadname.
v. 2. To out somebody's deadname to the public.

One of the best and most addicting forms of competition consisting of swimming, cycling, and running all at varying degrees of distances. Triathlon is not for the weak, for it puts the athlete in an undescribeable amount of pain, but when the race is over, you want to do it again. Anyone who downplays the difficulty of a triathlon or the classification of it as a sport should be beaten.

The coolest fricken sport in the whole world and includes swimming, biking, and running.

Any night of sexual activity consisting of the entire trifecta of penetrating sexual acts. The official order consist of oral, vaginal, and finally anal sex. However, if used as "we might as well have pulled a triathlon" it's understood the acts were there, but not the order.

A reverse triathlon would simply be the acts in reverse order.

When you enter a pet store, stick a fish, a hamster, and a parakeet up your ass and see which one gets out first.

Sex technique for the men.
You breathe deep (head)
Go ride her. (On top/bike)
The run her. (Bottom/Run)