What cyclists say by convention as they pass each other on the road, or occasionally as they ride near pedestrians. It is infinitely more cool than mounting a dorky little horn or bell on your handlebars and squeezing it at every opportunity. It may not be always be strictly necessary, but it is a little courtesy that will get you cred and make you look experienced.
<College student races to class and overtakes a pack of spandex cyclists, but remains silent.>
"On your left! On your leeeeeft!" You gotta let us know! Where are your manners?"
<sound of metal crunching and muffled screams. this guy will not have to say this for a while.>
The polite way of saying 'gtfo.'
Person A: omgg hi gaizu wuu2????
Person B: ...the door is to your left.
Person A: I totally just bought Justin Bieber's new album. Can't wait to play it!
Person B: The door is to your left.
Person A: fake n gay
Person B: the door is to your left.
your left nut: your left nut
where the fuck is mario judah, i like big dicks in my buttcrack
1.A basic rule in street fighting to gaurd against an attack from someone's right hand.
2.Euphemistically to take precaution against expected obstacles.
1. Yo son you wann eff w/ me he better keep your left up that's my word.
2. You making that run on the fourth? Yo, you betta keep your left up the feds be creeping!
Sarcastic phrase; used with the directionally challenged to make them aware of their error.
Doctor: "Raise your left hand."
Drectionally Challenged Guy: (raises right hand)
Doctor: "No, your other left."
A voiceline in war thunder when you get damage on your left wing, sometimes playing when the wing is completely gone.
Player: *Gets left wing torn off*
Radio: You've got a hole in your left wing!