I am I am
Something people say when they're either totally lost or they just don't know who they are, it’s like being stuck between a rock and a hard place, but with less actual rocks.
'I am I am,' he said as he stared at the ceiling for 10 minutes.
'I am I am,' she said as she tried to figure out what day it was.
'I am I am,' he said as he sat in a corner eating a sandwich.