When a girls ass or camel toe is showing perfectly.

A term used when something very good happens to someone, and there was nothing really bad to counteract the good.

The gentleman's "Fuck you motherfucker"

A quick and curt way to end a conversation, putting a thin polite spin on the rude abruptness.

Most uses of this phrase are referencing actor Gene Wilder's portrayal of Willy Wonka in the 1971 movie "Willy Wonka & the Chocolate Factory," where Wonka informs Charlie he has lost the contest because he drank the burp soda, a breach in the contract he signed. "You lose! Good day, SIR!" Wonka screams at Charlie before turning back to his desk.

Linking to an animated gif of the scene with the audio intact is a popular way to assert you are done with an argument on the internet.

Saying from the beginning of the 20th century stating that you are having a great/awesome day.

I'm so done with you. You are fired. You are no longer my partner/wife/husband/friend etc.

Sunny day, optimal weather conditions to get shit done.

it means that you take advantage of the chance to do something while conditions are good. In other words, you make good use of your time or make the most of an opportunity while you have the chance.