"the inside lane" - This always meant the lane furthest from the sidewalk or nearest to the median to me. A trawl of a few US sites mostly backs me up on this. This is the exact opposite of what it means in the UK. Here, in the UK, it refers to
"What am I like." - Not actually a question, but a rhetorical phrase after doing something silly or flighty or accidental. Can also be used in the second person, i.e. "What are you like." I don't yet know if it can be used for any persons. First encountered twice on Sunday in Britannia High, followed up tonight, coincidentally, by the first instance I've noticed C. using it.