A Gentleman Doesn't Kiss And Tell 

A play on the idiom "kiss and tell": "Kiss and Tell" implies a betrayal of confidence, typically (but not necessarily) when referring to an encounter of a sexual nature. While the phrase "A gentleman doesn't kiss and tell" was originally intended to end a conversation by making it clear that details will not be shared, it can also be used to infer that a sexual encounter actually occurred.

1) He honestly 'kissed' the girl, then later implied that he did by saying "a gentleman doesn't kiss and tell"... making him a sleezebag and not a gentleman.

2) He didn't 'kiss' the girl, then later implied the he did... making him both dishonest and insecure.

3) He did/didn't 'kiss' the girl but does not want to appear to be a sleezebag and wants to respect her privacy.

1)
Tom: So, did you fuck her last night?

Max: A gentleman doesn't kiss and tell *wink*

2)
Tom: So, did you fuck her last night?

Virgin Max: A gentleman doesn't kiss and tell...

3)

Tom: So, did you fuck her last night?

Max: Don't ask me about it Tom. A gentleman doesn't kiss and tell.

A Gentleman Doesn't Kiss And Tell by Marauder91 April 29, 2016

A Gentleman In The Streets But A Freak In The Sheets 

A man who is typically innocent or sweet natured when talking to women normally, but is immensely dominant in the bedroom.

"Jesus Christ", "what is it Christy ?" , "so I met this guy in the bar last night", "Oh?",

"and he was really nice and pretty good looking, he kept calling me beautiful and gave me a bunch of complements and suggested we should go to my place", "Mk?" "one thing lead to another, but then he started choking me and pulling my hair and shit", "wow", "and he even tied me down and spanked me", "talk about A Gentleman In The Streets But A Freak In The Sheets".

A Gentleman In The Streets But A Freak In The Sheets by Drunken Italian 442 December 19, 2021

A Gentleman's Half Hour 

A time when one feels it most polite to retire to a quiet space for a half hour slumber.

A short rejuvenating snooze.

Corporal: "Sir, the Germans are advancing on our front lines as we speak"

Captain: "How long do we have, old boy?"

Corporal: "Just under an hour, sir"

Captain: "Not to worry, my good man, Ill still have time for A Gentleman's Half Hour in that case, before the battle"

A Gentleman's Half Hour by HonourandIntegrity November 29, 2019

Like a gentleman 

To attempt to behave as a gentleman would. A gentleman, by definition is polite, courteous and drinks beverages with his "little" or "pinky" finger sticking out. Of late the term "Like a gentleman" has tended to be tack on to the end of a sentence for humourous effect, especially in the context of drinking alcoholic beverages. See also like a lord.

I'm going to drink this beer like a gentleman.
I was drunk last night, drunk as a gentlemen.

Like a gentleman by Yogrog August 28, 2006

A Gentleman's Calling-Card 

A friendly gesture between two heterosexual men, where one inserts a finger into the other's anus as a means of greeting.

1) Vincenzo Capozzoli always leaves a gentleman's calling-card.

2) I expressed our fraternity through the means of a gentleman's calling-card.

3) Gads, that young whipper-snapper just left me a gentleman's calling card, what a cad, what a bounder!

A Gentleman's Calling-Card by Baarakiss October 6, 2008

A Gentleman’s Lift

Moving your golf ball from a bad spot to a good spot without taking a penalty stroke.

Mike: “Look where my ball landed! Brutal!”

Jamie: “Just take a Gentleman’s Lift”

A Gentleman’s Lift by Foggy Clue September 10, 2020

A Gentleman's Compliment

When, during lovemaking, the gentleman is so aroused by the lady he's currently in that, instead of losing tumescence after orgasm, he maintains wood and carries on for a second innings.

Gill was flabbergasted and held on tight as Jack resumed his pounding after a very loud finish." A Gentleman's Compliment".

A Gentleman's Compliment by murderousyoric January 14, 2010