Peaking is when someone usually a guy, has sex with 5 or more women at once. Once he has finished and came all over them, he promptly blows his brains out all over them because his life will never be any better.
The act of getting an erection while wearing jeans that are slightly too small, with the end result of the dickheadpoking out of the top of the jeans. Usually unbeknownst to the owner.