Severly Anal Retentive, so tight you cannot deficate, single minded stupidity, uptight, tied up in knots, all resulting in the effected individual, group or organization becoming full of feces. Squenched, to squench, a squencher.
1.The bass guitar player is such a aquencher about being the perfect musician that he's not able fit in with the band.
2. Bill was voted most likely to have a stick up his ass by the employees that he was a major squencher to.