sinusoidal 

Having a succession of waves or curves.

Kiko: What is with you, tonight? Must be one of those high testosterone nights!
Tommy: Are you saying my testosterone level rises and falls like a sinusoidal wave?
Kiko: *fanfare* Acquired new key term: Sinusoidal! YESSS!
Tommy: You didn't know the term SINUSOIDAL? I'm disappointed!
Kiko: I thought you had misspelled/messed-up "sinuous."
Tommy: Damn escrillo!
Kiko: Hey!

sinusoidal by Kiko April 25, 2004

Sinusoidal syndrome 

A person whose happiness if measured on a happy o' meter would behave sinusoidally (the graph would look like a sine wave).

If Fred's happiness varies sinusoidally because he has sinusoidal syndrome and he is completely sad (0) at time 5.2 and goes to completely happy (10) at time 12.8 what is the trigonometric function for his mood?

The math teacher went off on another tangent and began rambling about people whose moods vary sinusoidally because of their having sinusoidal syndrome.

Sinusoidal syndrome by bob11d6 June 17, 2010

Sinusoidal 

When someone is moody or in a mood usually due to a lack of sex or not having a regular masturbating schedule in place. Derived from the fact that the sine wave traverses up and down like the mood of a bipolar bitch.

‘Yo Amelia, you’re so sinusoidal today’
‘Fuck off, I didn’t get rattled last night’
‘Oh, that explains it then’

Sinusoidal by Dulan gym boy November 3, 2019

Sinusoidal Worker

A person who does significant amounts of work for one thing while simultaneously doing lots of work for a different thing.

Say someone doesn't submit any homework assignments for a week, but then shovels snow off a track so they can run laps you would say to them

"bro your such a sinusoidal worker"
"true"

Sinusoidal Worker by agreatfuck December 3, 2025

Sinusoidal Worker

A person who fluctuates between doing large amounts for one item of work and small amounts of work for a different type of work in quick periods of time. For example, not turning in two homeworks for a class, while simultaneously shoveling snow off a 1/4 mile track that same day so they can run

"Bro your being such a sinusoidal worker today"
"Fuck you I only ran 40 miles, and skipped 6 classes its not that bad"

Sinusoidal Worker by agreatfuck December 3, 2025