A type of internal combustion engine consisting of a triangular rotor which rotates in an eccentric orbital motion around a epitrochoid housing. Advantages of this design are a compact size, mechanical simplicity (a two rotor engine has only three moving parts), high potential power output proportional to size, lightweight, high-revving and extremely smooth in operation. Disadvantages include high rate of fuel and oil consumption, complex sealing arrangement and high seal count, weak torque, more fragile than a four-stroke piston engine, and lower long term reliability. Also known as a Wankel engine (pronounced 'Vonkel') after it's inventor, Dr Felix Wankel.
by johnnylongprong March 08, 2009
The aftermath of an extensive sodomy session when the anus becomes so loose it's like having sex with a bowl of porridge.
by johnnylongprong January 14, 2011