three piston engine

A group sex act in which three people who possess phalluses simultaneously penetrate the orifices of one other person.

Three members of the college football team showed the Captain of the cheer leading squad how a three piston engine worked.

by PsickoAlpha March 14, 2014

red engine

Word that denotes Hiv+ person who is going around sleeping with others without telling them that they are infected.

Did you hear that Leah has been sleeping with Trent? Yeah you know i heard that she has that Red engine and refuses to let her partners know about it.

by buge April 25, 2014

energy systems engineer

The energy systems engineer is an elusive breed of engineer. Often found scurrying around the forest grounds on the banks of the River Corrib, the energy systems engineer will not take very lightly the fact that you are tainting their environment with your carbon dioxide emitting ways. They have a weakness for white wine and tacos and can be captured using a butterfly net.

"Derek! I think I have just seen the lesser spotted energy systems engineer in it's natural habitat!"
"Jolly good, William, but what is that curious sound it is making?"
"It is difficult to hear, Derek, but it sounds like it is hashtagging Longford."

by NotAnEnergySystemsEngineer May 14, 2014

Engineer's Mullet

Physics, Chemistry, Other shit Monti complains about in the front, party in the back

Hook - "Hey man, nice mullet bro"

Montana - "Fucking business idiot I'm an engineer, if I was in business I wouldn't be an engineer fuck. I have an engineer's mullet"

Hook - "Shit sorry forgot how sick you were pce"

by JMONEY^&e May 17, 2014

without knowledge in engineering

without having thought things through comme du monde

if you are going to build an electric chair in your basement, please don't do so without knowledge in engineering!

by Sexydimma March 14, 2015

without knowledge in engineering

Building or constructing something without having thought it through comme du monde

If you try building something like an electric chair in your basement, without knowledge in engineering, just a friendly caveat : not only are you slicing the pineapple, the result may be Frankenstein

by Sexydimma August 1, 2016

Startling the engine

A phrase used in the mechanics world for turning on an engine and turning it off in under a second.

Stop startling the engine you'll ruin the starter!!

by Honda_Otaku December 2, 2016