Oh burger

At a rugby match yesterday, I was queuing up for a hotdog when a teenage girl behind me in the queue asked her friend:

"What's a one-stroke-four-ell-bee burger?"

"It's a quarter-pounder," her friend replied. Obviously it was written on the sign as '1/4lb burger' - enough to confuse one of the metric generation...

A one-stroke-four-ell-bee burger