Thickish liqueurs are alcoholic beverages that have a higher viscosity than other types of liqueurs. The term 'thickish liqueurs' is often used to refer to cremes, which are liqueurs made with cream or dairy products. Cremes are typically sweet and have a thick, syrupy texture. They are usually flavored with fruits, nuts, spices, and herbs, and can be served as an after-dinner drink or used in cocktails.