I love Dilbert's blue jacket. Dogbert knows what a cummerbund is and is messing with Dilbert's head, figuratively and literally (note Dogbert's wagging tail in the third panel).
I have the vague feeling thats its actually like a crotch cover.in any case i would definitly know not to put it near any part of my body that i cared about.
Galaxyspinner. Poof is to young to understand all the intricate details of a tux.
Poof, ask your dad to explain it to you. I'm sure you will find it funny!