The tube just bypasses the blockage by draining the urine outside the body.
The lower reaches have streams and sump bypasses which are still going.
It's music that bypasses the brain entirely, beguiling the soul with its ceaselessly inventive mercurial forms conjured literally out of the air.
A diversion along the dry oxbow bypasses the waterfall pitch.
Perhaps he/she refuses to see your talents and continually bypasses you when it comes to promotions, he/she may have questionable ethics, or you may just have the sneaky suspicion that your boss just doesn't like you.