"Cocking of a snook" is a British expression meaning to show disrespect or scorn by placing one's thumb on the nose and extending all fingers. There are several synonyms for this phrase including "thumbing one's nose," "making a mockery," "disdaining," "disregarding," "snubbing," and "scoffing." All of these phrases refer to the act of showing contempt or ridicule towards someone or something. It's important to remember that while these phrases may be used in a humorous or lighthearted way, they can also be hurtful and offensive. It's important to consider the feelings of others before using any of these phrases.