That's what it means literally. "Всн" in the second line should be "все". A boa lived in the valley [It] pretended it knew everything pretended it could do anything moved its tail in the grass [it] was just looking in the river [but] pretended it washed his face. White sides and black sides A cow has - like a magpie If it also had wings it would fly/take off it would take off and fly around And sing flying Cause a cow is like a magpie White sides and black sides