When you ejaculate so fucking hard you cum 360 degrees all over around your partner. Hence the "cum" in "circumnavigate" unless you are blind.
Don't circumnavigate around her, oh my god!
by thegurugenius April 05, 2010
To have sex on every continent, hence to cir-cum-navigate.
Finally! My wife and I have always wanted to circumnavigate the Earth. We finally took this cruise to Antarctica, and when they finally let us off we did it! The best part is you can just finish anywhere and no one will notice because everything's all white.
by Quince Vaughan January 19, 2015