Retrodynamic 

When vintage items are outfitted with modern high end components. The ultimate blend of nostalgia and innovation, the perfect balance of classic and cutting-edge, where vintage meets modern performance.

That bike is incredible, vintage frame with high end carbon parts, totally RETRODYNAMIC!

Retrodynamic by vancitybikeman January 12, 2023

rectodynamic 

From "rectum-" (anus), and "-dynamic" (movement).
An object is said to be rectodynamic when its shape makes it very easy to be introduced into your anus.

Look man! That bottle looks really rectodynamic, should we try it out?

rectodynamic by Germenfer December 9, 2019