Knob of butter meaning

What is a knob of butter? A "knob of butter" 
is an informal term used to describe a small,  

roughly tablespoon-sized portion of butter. It is 
not an exact measurement, and the amount can vary  

depending on the context or individual preference. 
Typically, a knob of butter is a small piece that  

is cut or broken off from a larger block or stick 
of butter. This term is commonly used in cooking  

and recipes when an approximate amount of butter 
is needed, often for sautéing, frying, or adding a  

bit of richness and flavor to a dish. When using 
a knob of butter, it is generally understood  

that precision is not critical, and the actual 
amount can be adjusted based on personal taste.