A tagline added to posts that reveal the author's age, which is higher than he/she would otherwise care to admit. It plays on the cliché of the elderly yelling at kids who trespass on their lawns.

(1)-Interjection- For an old person to yell, bicker, and bitch at you to get off his piss-yellow lawn.

saying refering for someone to get out of your business

Get out of my space, Get Out of my bubble. To ask a person not to crowd you or to move from a place you were sitting or at prior to the persons encroachment. Get Off My Lawn Means Move Away!!

also see hillbilly something that i said that made my teacher laugh so hard in social studies that milk came outta his nose

a general statement
it means whatever you wish it to mean
Yes, yes even cheese is good.