Smell you later 

Used as a farewell, the phrase "smell you later" is another way of saying goodbye. Invented in the 20th century, It's prime usage was in the 1990's. It's slow decline started in the early 2000's. The phrase was mostly used by young ages. "smell you later" is very similar to "see you later" and means the exact same thing. Although not as popular as a farewell anymore, people still recognize the phrase and it's meaning.

I have to go, I can't be late to work. I'll smell you later.

Smell you later by 2Preston December 16, 2009

See you later alligator 

It is one of the informal ways of saying goodbye to someone. Apparently, this phrase has been derived from a 50's pop song. The person to whom this phrase is being said, says- 'In a while crocodile!'

Mark: See you later alligator!
Janet: In a while crocodile!

See you later alligator by hds2002 March 10, 2016

see you later alligator 

Used when saying good-bye.

You: See you later alligator!
Friend: After a while crocodile!

see you later alligator by Shannon Elizabeth August 12, 2005

Skeet you later 

expression to bid farewell. Also said to girlfriends post fellatio.

To friend, "Skeet you later!" Then leaves

Skeet you later by The Red Hat Kid August 30, 2006

See you later, alligator

This is an old use and still use for this catch phrase to tell someone see you. and the answer for it after while, crocodile, alligator and crocodile were brought for the sake of rhyme.

OK, see you later, alligator.
After while, crocodile.

See you later, alligator by Nabeel, January 15, 2008

ill holla at you later 

i will talk to you later.

girl:hello
boy:hey
boy:cant talk now

boy:ill holla at you later
girl:oh, ok.

ill holla at you later by strangerdanger7676 March 19, 2014

I'll Kill You Later Smile

The smile parents give their kids when they fuck around in public but the parents can't kill their kid yet.

Joshua broke a can of tomato sauce at the grocery store so his mom gave him an I'll Kill You Later Smile before calling over an employee.

I'll Kill You Later Smile by Opinionated Webster June 2, 2016