The first person to leave his group of friends and go home during a fun late night out. This person will often try and slip out (i.e. leak out) unnoticed to avoid the embarrassment and shame of being the first to leave his buddies.
Man, it's only 10o'clock and there goes Lamont. He is such a leaker.
Those insanely embarrassing tiny little pressure-farts that come squeaking out of your anus at the worst moments such as at a wedding or at dinner with your in-laws.
Although it could have easily been mistaken for muffledsubmachine gun sounds in the distance, it became quickly clear from the horrid stench that is was my leaker farts.