SPCD is an acronym for "Small Penis Compensation Device". These devices include a wide range of subjects ranging from a 300,000$ Ferrari to an aggressive monster truck on the public roads. Devices also include 5000$ watches, ridiculously expensive suits (clothing)...you get the idea.
Matt: Hey! wanna check out my new diamond studded 4000$ watch?
Kuren: Dude, spare me your SPCD.