The act of concealing your handgun under your car seat. The car manufacturer Audi, and a few others placed a built in compartment underneath the driver and passenger seats for storing items. This compartment can be used to store your firearm.
Example 1. "You better watch yourself tryin' to run up on them after bouncin' from the club, I heard they got the heated seats"

Example 2. "Me and my boy both keep our burners under our seats, xd40 n glock 40, we got the heated seats baby!"
by seat heater April 17, 2011
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The uncomfortable situation when using a toilet and the seat is warm from the previous user.
Brendan: I was at work early this am and hardly anyone was in the office, though when I went to take a dump, I found the seat was warm.

Frank: Man, what are the odds. There are four stalls and you chose the one with the heat seat.

Brendan: ya, not great way to start my day. I was simply finishing my coffee.
by the comand'r October 15, 2016
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Sitting on the seat that is only used for masturbating and with the intent of masturbating.
Where's matt?

I'm not sure, but the last time I saw him, he was sitting on the heat seat, beating his meat
by Airza March 2, 2019
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