"Oh My God!" as someone said up there, is gratituously asking for trouble. If I was going to break one of the Commandments, it wouldn't be that one. Others sound much more fun.
"At the Coalface." Usually by someone who couldn't handle a days physical work. I was a miner long ago, so I know what a stripper looks like. They look like a bundle of wire rope. Stripper = coalface worker. Person who disrobes for money = Striptease artist.
"Have a nice day." I'll have any kind of day I want.
"Growun", recent repronunciation for grown and groan.
"Ahead of....." when they mean before. Ahead of the field, yes. Ahead of time, no. American usage that is infiltrating the Media.