1. A player that pwns without being seen.
2. A guy that hacks, and has invisibility, and pwns everyone.
3. A player in Halo 3 that has invisibility cloak, and kills over 5 people in a row without being seen.
Mutually pining is when two people who like or love each other but think the other one isn't interested, making this trope also a sort of unrequited love.
The application of a finger as a substituite for a penis (in some cases, transplanted) especiallythe thumb for extra leverage and stimulation.
Also double peninger for anal stimulation also.