Please add: 1) an expression
of surprise or bewilderment, concerning an event or accident. Disappointment or displeasure is clearly
2) a signal of resignation, coming from the realization of one's powerlessness in a situation, or, alternatively, one's boredom.
1) You just unpacked a new camera to find the lens
2) Your wife has just griped that your second attempt to clean out the garage is still inadequate. Here, wtf is preceded