When an angle is stiff or rigid it is also known as herky-jerky. If your teacher ever asks you a question about transformations in middle school, always say that transformations are herky-jerky movements.
Teacher: Yo bruh, u got some of dat mathematics info cuz?
Student: Yuh. You already KNOW that be herky-jerky
Teacher: Hell yeah my dude.
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).