grundle-cam 

An all too common porn camera angle, where the camera pushes in for a close up, and captures only the man's sack and taint; and is often a result of poor camera work during the missionary position.

Dude, i was pulling off a good one last night until i got some grundle-cam. That shit was devastating. It set me back like five minutes.

grundle-cam by ReidMobile January 11, 2009

Grundlecakes 

(n.) grundlecakes are created when excess vaginal secretions seep from the vagina and run down to the grundle where they dry forming a flaky, crusty, build up. This usually occurs during aggressive foreplay or hardcore sex in the missionary position when the female becomes increasingly aroused and wet. The term grundlecakes refers to both the caking of the vaginal secretions to the grundle area, in addition to the actual flakes and clumps that shed from the grundle upon the bedsheets. Grundlecakes is not merely a female phenomena but can form on the male if the vaginal secretions are spread during intercourse to his grundle and dry there.

Erin was slightly disgusted and surprised to find grundlecakes all over her bedsheets the next morning after Anthony provided her with a weeks worth of orgasms the previous night.

Grundlecakes by Optimus P March 19, 2011