"He's" instead of "his"
"Nip it in the butt"
"Flaunt with danger"
"Chester drawers" (a friend told me about this one last night)
"Fopa" instead of "faux pas"
Those are all I can think of off the top of my head! "He's" instead of "his" is probably the one that bugs me most. I see it ALL the time! Oh and because it's Bub Hub:
"I'm feeling nauseous" instead of "I'm feeling nauseated". That's rampant in the pregnancy world. If you're feeling nauseous it basically means you're making other people sick lol!