A cum-bubble fart is a wet gaseous emission smelling of cum from a guy's asshole that he lets out after he's been fucked by several dudes in his bunghole.
The other cadets in my pod all fucked me last night, and I was having cum-bubble farts all night!
When said head-giver gets a mouth full of cum and can not possibly retain anymore before swallowing, therefore said person pulls away. In some cases however, the head reciever has more to share and happens to cum on head-giver when she pulls away or on himself.
When playing Halo 2 or any other action-packed shooter game on console, the action gets so intense that the player has a forced orgasm all over his controller.
Whilst cumming on the controller, the player says into his headset, "I cum on ze controllah!" in a comedic German accent.
This is based on young Arnold Schwarzenegger's interview, to which he was "cumming all ze time!"
Playing Halo, Hienrich van Gloppenhiemer said, "I get double, triple, killtacular! AGH! I cum on ze controllah!"