<P> Cud is a portion of food that returns from a ruminant 's stomach to the mouth to be chewed for the second time . More accurately , it is a bolus of semi-degraded food regurgitated from the reticulorumen of a ruminant . Cud is produced during the physical digestive process of rumination . The idiomatic expression chewing one 's cud means meditating or pondering ; similar expressions such as `` he chewed that over for a bit '' , or `` chew on that ! '' likely have the same derivation . </P>
<P> Cud is a portion of food that returns from a ruminant 's stomach to the mouth to be chewed for the second time . More accurately , it is a bolus of semi-degraded food regurgitated from the reticulorumen of a ruminant . Cud is produced during the physical digestive process of rumination . The idiomatic expression chewing one 's cud means meditating or pondering ; similar expressions such as `` he chewed that over for a bit '' , or `` chew on that ! '' likely have the same derivation . </P>
what does it mean by chewing the cud
what does it mean by chewing the cud
meditating or pondering
meditating or pondering