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A combination toliet / lavatory (sink) found in prison cells.
Often called a, "suicide-resistant prison comby" or, "ligature-resistant prison comby" because the toliet portion has no seat and only a small amount of water is present in the bottom of the bowl after flushing it -- this helps to prevent inmates from attempting to drown themselves or getting their heads between the seat & bowl.

Sometimes they are simply called an aluminum thunderflush because they flush quickly and loudly.
{Inmate}: Guard, my prison comby has no hot water and doesn't flush.
by Telephony July 21, 2014
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A combination toliet / lavatory (sink) found in prison cells.
Often called a, "suicide-resistant prison comby" or, "ligature-resistant prison comby" because the toliet portion has no seat and only a small amount of water is present in the bottom of the bowl after flushing it -- this helps to prevent inmates from attempting to drown themselves or getting their heads between the seat & bowl.

Sometimes they are simply called an aluminum thunderflush because they flush quickly and loudly.
{Inmate}: Guard, my prison comby has no hot water and doesn't flush.
by Telephony July 21, 2014
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Get a prison comby mug for your brother Callisto.