The term 'STICK IN THE FRIDGE' can be solved by two crossword solutions, 'BUTTER' (6 letters) and 'OLEO' (4 letters). BUTTER is a dairy product made from churning cream or milk. It is a solid when chilled and is often used as a spread on toast or sandwiches. Oleo is a brand of margarine, which is a BUTTER substitute made from vegetable oils. It is also a solid when chilled and is often used as a spread on toast or sandwiches.