Hey man, I'm old and say dumb shit sometimes (like calling stupid stuff "ghay" and call able-bodied people "retards") and I get rightfully flamed for it. I'm an idiot and and sometimes shoot from the hip and don't realize the words i grew up with are now received differently and that I'm not shooting the shit in my garage with my friends.
Try to learn from dumb older people like me, expand your vocabulary and work on those "jokes".