1 definition by Noletriot

Top Definition
Heissing is the act of putting your asshole directly up to your partners and pooping back and forth. In order for this to work successfully a firm log is required.
Duuuude, my roomate and his girlfriend were Heissing last night. The whole house smeels now and he had to borrow a spare set of my sheets.
by Noletriot March 15, 2011

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