A speed where you are almost in 1st gear but still in reverse, or just being very unproductive
Our employee moves at spiegel speed.
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.
When something malfunctions ie. fucked up
Bruh my laptop is spiegeling
This kid is annoying asl, he keeps spiegeling our project!