a towel, cloth or other such material usually relegated to use primarily as a repeated method for a guy to ejaculate into, or to wipe up his spack after he has cummed. Usually becomes hardened and stiff in appearance.
Ahren's cum towel became hard and round as a baseball after the repeated loads he shot into it.

After jerking off Brian reached out for his trusty cum towel.
by marathon September 12, 2006
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