A warm to hot region left behind on a chair by someones ass or genitals when they get up.

Gamma Rays, emit off Cubans during the first 5 years of coming off of their raft during strenuous, aquatic travel. Studies have shown Cuban Radiation is the number one casual relation to Heart Cancer.

1. Loudspeaker enclosure principle
2. Someone that not brings a party on. You have to insert the party into a Passive Radiator to make the party come out of him/her.

When a co-worker leaves his or her toe nail clippings on the heating systems radiator in the shower room so somebody else has to throw them away.

An act of pleasuring ones bum on a warm radiator while ingesting food stuffs of extraordinary proportions. This is often done during a break in work or at the stroke of midnight. Observers can often seem bemused and have to be treated for mild shock as the belly of the beast enacting this routine sends one in to a state of despair.

If you've been exposed to the darkest, most messed-up products of Reddit - then you've been exposed to Reddit Radiation.
The more you've seen, the more radiation you're contaminated with; the more you have been disturbed.

This is where it gets very heated in the bedroom