1 definition by mark77nyc

Top Definition
psb
Poisonous Sperm Build-up.
This is the male version of PMS. Characterized by moody outbursts and a generally disagreeable disposition. Caused when a male allows other life issues to get in the way of not properly taking care of his sexual needs.
Dick is being such an a#*hole tonight. Must be the PSB - that time of the month.
by mark77nyc March 11, 2008
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