We use three criteria for including a term or phrase in this dictionary. We include (1) slang and unconventional English, (2) used anywhere in the English-speaking world and (3) after 1945. | 311 Gucci gun Gucci adjective stylish especially cleverly so. From the high-profile fashion brand uk 1995 gucky noun Gucci a fashion-design label. Upper-class society usage a deliberate and jocular mispronunciation of a favourite brand uk 1982 gucky adjective sickening. Upper-class society use uk 1982 gudentight goot-n-tight adjective tight especially in a sexual context A mock German or Dutch construction us 1969 guernsey noun get a guernsey to be selected for something such as a team job award or the like. Originally to be picked for a footballteam from guernsey as a top worn by footballplayers Australia 1918. give someone a guernsey to select someone AUSTRALIA 1962 guess noun by guess and by God a casual form of nautical navigation us 1986. miss your guess to be mistaken us 1921. your guess is as good as mine a catchphrase used to describe a situation where neither party knows the facts Canada 1939 guessing stick noun a slide rule us 1941 guessing tubes noun a stethoscope. Medical slang uk 2002 guesstimate guestimate noun a rough calculation. Part guess part estimate us 1934 guest noun a prisoner Used in combinations such as guest of the city guest of the governor or guest of the nation us 1982 guest star noun a last-minute replacement to take the place of someone who has cancelled a date us 2002 guff noun 1 foolish nonsense usually spoken or sung. From guff empty talk later usage informed by the sense of a fart punning and adding a noxious element to hot air nonsense us 1888. 2 back-talk verbal resistance us 1879. 3 a fart Probably from the sense nonsense thus a play on hotairuk 1998 guff verb 1 to fart. Probably from guff nonsense hence a play on hot air uk 1997. 2 to eat and drink greedily India 1979. 3 to anger and prepare to fight trinidad and tobago 2003 guggle noun the throat the gullet us 1991 guide noun a person who monitors the LSD experience of another helping them through bad moments and caring for their physical needs us 1966 guider glider noun a .