1
beg-puss: A desperate male that exudes desperation
(craving the puss). He is likely to throw cock at puss at any given opportunity, with no shame what-soever.
2
begging the puss; A shameless individual displaying extreme desperation
to get the 'puss'
Saying "I beg to differ" means you disagree with something, or generally just are of another opinion. Originally a somewhat formal expression, it's commonly used now in less formal circles.
Person 1: "Opera is way better than Firefox; it looks a lot better."
Person 2: "I beg to differ, you can customize Firefox just the way you want."