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.

to tell someone to calm down and relax.

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

The way a grumpy old man greets small children playing soccer while he's sitting in a rocking chair.

slang expression: get off my back; leave me alone; go away

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!!