A mirror (i.e., 'spiegel' = 'mirror' in German) used by a guy who likes to watch
the reflection of himself
and/or other guys splooging
. Usually includes copiously splooging
directly onto the mirror.
Dude, last night I got so turned
on watching myself that I like totally shot a huge load all over
my splooge spiegel after edging my cock for hours.