1900 G. Burgess (title) Goops, and how to be them. Manual of manners for polite infants, inculcating many juvenile virtues, both by precept and example.]

1914 Dial. Notes 4 107 (Kansas) Goop, a boor.

1918 Story-Teller Feb. 695/2 You rabbit-faced goop!

1925 N. Venner Imperfect Impostor i Go on, it's a bargain. I'll be the poor goop of this piece.

1929 ‘A. Berkeley’ Wychford Poisoning Case xx. 250 Oh, ass, dolt, fool, goop and mutt!

1946 P. G. Wodehouse Joy in Morning i. 8 My first emotion..had been a gentle pity for the unfortunate goop slated to step up the aisle with her.

1955 Sci. Amer. Apr. 84/1 Americans are shocked when they go abroad and discover whole groups of people behaving like goops—eating with their fingers, making noises and talking while eating.

1966 Punch 21 Dec. 908/1 I am very jealous of my position as chairman of Juke Box Jury,..and I don't believe one can be a placid smiling goop all the time.

1926 Chambers's Jrnl. Dec. 770/1 The baggage always affects strangers like that... Makes 'em frightfully goopy till they discover her for the cockatrice she is.

1959 I. Opie & P. Opie Lore & Lang. Schoolchildren x. 179 A person who is ‘wanting in the upper storey’ is:..dotty, goofy or goopy.

1930 M. B. Cary Mademoiselle from Armentières I. 12 Oh, Mademoiselle from Niedermendig, Gobbled the Goop for funfzehn pfennig.

1933 Spirit Lake (Iowa) Beacon 27 July (advt.) Saturday special. Goop chocolate sundae.

1957 Pittsburgh Courier 5 Jan. a13/3 (caption) An ordinary pot roast can be ‘dressed up’ by cooking it with prunes and wine. Serve it with noodles to use up the good ‘goop’ from the pan.

1979 J. Varley Titan (1987) 1 She groped for a towel and wiped the greenish goop away.

2007 Canad. Geographic Mar. 50/1 ‘Snarge’, a Field Lab term for the goop wiped from an aircraft following a bird strike, is often anatomically unrecognizable.

1950 Harper's Mag. Dec. 99/1 Goop is the greeting-card trade term for sentiment that is too sentimental even for a greeting-card author.

1957 Washington Post 18 Sept. a12/5 In her support of segregation..she should do it openly, instead of trying to mask her true feelings behind a lot of sentimental goop.

1982 United Press Internat. Newswire (Nexis) 17 Nov. [He said] Garvey was at fault for misleading his players. ‘I was surprised with the goop Garvey was telling them.’

2000 Opera Now Jan. 54/1 The dignified pathos of Giulietta, sung, compellingly and without undue emotive goop, by Laura Claycomb.

2013 J. A. King & R. Correll Canon EOS Rebel T5i/700D for Dummies ii. 71 You may be finding all this technical goop a bit much, so allow us to simplify things.