In English means: "We're all in the wind together". It is used to express unification of a group of people around the same situation or problem. It is similar to the English phrase: "We're all in this together" e.g.
Person 1: "Nobody had the time to solve more than 50% of this exam" Person 2: "I think I'm gonna have to repeat the course" Person 1: "Kellna bl hawa sawa my friend"
"LABAN EL 3ASFOUR - لبن العصفور" - Lebanese Slang, literal translation is "the bird's milk (yogurt)", metaphorically refers to something quite scarce or non-existent. Usually used in a situation where a person is in love and trying to please his partner by doing the impossible. example:
"The poor guy brought her "Laban el 3asfour" and yet she rejected his proposals over and over again"