An internet meme originating from the popular computer game Team Fortress 2. A common source of "epic lulz", and slightly less epic lung cancer.

It is also accompanied by a monthly holiday, "GENTLEMEN Day", which occurs on the fifth of every month (especially June 5th). It has also achieved a bit of fame via Tom Green Live.

Originally a misspelling of "This is it, gentlemen.", but now used as a way to point out nice things. If someone tips you, this is gentlemen. If the price of Bitcoin rises, this is gentlemen. If the sun shines, this is gentlemen.

a way to let everyone know that what comes next will make you shit your pants. It is an attention grabber, and it shows that the shit has just hit the fan.

The word a Warrant Officer uses to talk down to those that are in a lower ranked position.

When someone is wearing a top hat everyone must say 'The Gentlemen'. You may only say this and put on the top hat after it falls on someone's head randomly.
As popularized by How I Met Your Mother

The act of talking sirly, like a gentlemen, when speaking to or texting someone.

homeboys that you get fucked up with