Poodle-flaps is a term used to substitute a swear word when cursing. It is often used when under the influence of cannibis, and can be a response to something that you are incapable of formulating a lucid reply to. The term conjures images of a Poodle's vaginal flaps, and this is the intent.
Bob: "James, pass the pringles..."
<knocking over the pringles in an attempt to reach them>
<Upon making an error in work or college>
A person (male or female) that often has cankles, is either grossly overweight (we're talking ripples and folds upon folds here) or are just really ugly and can't walk properly up stairs because,
1. They are grossly overweight and...
2. They don't know how to walk up stairs without stomping and making the apartment block shudder while doing so.
Generally, Moose-Heffers are lovely people.
Have you seen her? What a Moose-Heffer?
Oh God, it's Moose-Heffer. Brace yourself for the shuddering as she stomps up the stairs on her stumpy cankles