Pretty simple. Weird phrases you've heard your grandparents use. Stupid things your friends have said. REALLY stupid things you've overheard some idiot say. Maybe even something odd that came out of your own mouth. Ect. Then maybe tell us who said it.
"In the end, all you really have is you. Unless of course you murder someone and sew them onto your back."
/\ In my defense, I was tired last night.