a little light on his feet 

Effete, a bit of a poof, possibly homosexual

The fellow professes to be happily married, but he's a little light on his feet, if you ask me.

a little light on his feet by octopod July 16, 2011

Big ol' chair and a light on 

Famous lyrics from the Steve Miller Band

Oh, oh big ol' chair and a light on
Don't carry me too far away
Oh, oh big ol' chair and a light on
'Cause it's here that I've got to stay

Big ol' chair and a light on by Kad69 May 10, 2022

Dancing with the light on 

Dancing with the light on, just means plain dancing or grinding

Joe: Babe, what'd you do last night?
Gya: Oh, just went dancing....
Joe: Oh my god.....
GyaL Don't worry!! We were dancing with the light on! :)

Dancing with the light on by militarybratgiaxx November 8, 2010

leaving the porch light on 

When a swinger couple, or an otherwise cheating spouse puts out a subtle hint that their significant other isn't home and they are available to cheat.

Often used to let another cheating spouse know the coast is clear to sneak in a house and start bumping uglies for a quickie

Karen wanted to let Dan know she was ready for some dirty cheating sex so started leaving the porch light on when her husband was gone for work

leaving the porch light on by Rick2024 June 11, 2023

Light-Speed On My Dick 

When you masturbate while on shrooms, and your hand moves to fast, causing you to see thousands of hands simultaneously jacking you off.

James: Oh man! I was jacking off on shrooms! and I looked at my dick! and it was... it was...

Farva: Light-speed on your dick?

James: Light-Speed On My Dick.

Light-Speed On My Dick by Iamfarva April 25, 2010

Light is on

When someone is ready to date or looking for a committed relationship.

"I think you should flirt with him, his light is on!"
"Men are like cabs. When they're ready to get married, they turn their light on." -- Sex in the City

Light is on by geistweg January 25, 2015

The light is on but nobody is home 

A common phrase used to refer to someone who's perception is very, very slow. An imbacil for example. Someone who just can't understand.

A: Excuse me, what time is it?
B: Time for you to go home and play with soap!
A: But my mom will be angry if I waste soap?!
B: The light is on but nobody is home
C: Kalevet!!!

The light is on but nobody is home by wandman September 1, 2005