FAT,FAT, FAT.  
Did i mention FAT?
That might be the best word to describe the Menatone Blue Collar.  Absolutely brilliant on a Strat is another way I've heard.  Creamy and syrupy with greasy overtones is a third.
This was Menatone's  second production pedal.  They launched it in January of 1997 as the other side of the coin to the open sounding Red Snapper.
The Blue Collar is a compressed, mid hump, singing bluesy overdrive that just seems to sit in the mix without any fuss.  Its presence control lets you dial in just the right amount of "pick attack" so that you can sound thick as molasses but still cut through.  Did I mention the Blue Collar is absolutely brilliant with a Strat.