A SQUIRREL!!! moment is when you have been distracted by random nothingness.
To be diverted from one task/situation with no effort.
To have ones attention easily diverted
Disney Pixar Movie UP: The SQUIRREL!! moment originates from this animated movie where we meet Dug, The Talking Dog, who delivers the hilarious reoccurring SQUIRREL!! gag, while trying to remain focused is distracted instantly.
mum: "Will you pop upstairs and fetch the dirty laundry please"
boy: "yes mum"
boy goes to room for laundry, spots a toy he likes plays with toy, (this is the SQUIRREL!! moment, the point of distraction)
5 minutes later.......
mum calls: "where is this washing???"