Green’s Dictionary of Slang

see under beans n.³

(orig. US) contemptible, stupid, nonsensical.

1932		J.L. Kuethe ‘Johns Hopkins Jargon’ in AS VII:5 332: full of bean soup / full of crap / full of prunes—expression of disbelief or contempt.
1939		J. Steinbeck Grapes of Wrath (1951) 54: Willy was full of crap.
1948		H. McCoy Kiss Tomorrow Goodbye in Four Novels (1983) 237: ‘You told me once you didn’t know much about guns.’ ‘Oh, you know I’m full of crap,’ I said.
1955		R. Graziano Somebody Up There Likes Me (1956) 250: They are full of crap.
1957		H. Simmons Corner Boy 148: Aw, she’s full of feces.
1965		(con. 1930s) R. Wright Lawd Today 61: Aw, you niggers full of crap!
1977		A. Hoffman Property Of (1978) 77: You’re full of crap.
a.1985		‘The Open Book’ in G. Logsdon Whorehouse Bells Were Ringing (1995) 109: So it’s high time somebody debunked him; / he’s so plumb full of crap.
2000		Penguin Bk of All-New Aus. Jokes 147: Why are men like toilets? They’re either vacant, engaged or full of crap.
2005		S. Berkun Art Of Project Management 451: So, if ever people complain that requirements and problem definitions take the challenge out of problem solving, know that they’re full of crap.

see under glue n.

see under hop n.³

1. pregnant.

1984

Partridge DSUE (8th edn) 435/1: C.19–20.

2. of a person, lying, spinning a line, telling tales [euph. for full of shit phr.].

1970		D. Ponicsan Last Detail 151: You’re so full of it.
1995		C. Hiaasen Stormy Weather 317: I think you’re full of it.
2001		N. Barlay Hooky Gear 263: J, youre full of it. Youre a farty dreamer is wha.
2023		A. Nette Orphan Road 115: ‘[T]here were a lot of guys walking around after Vietnam, said they’d done all sorts of bad shit [...] Some of them were full of it’.

3. see full adj. (1)

see full of beans under beans n.³

(N.Z.) talking nonsense.

2003

McGill Reed Dict. of N.Z. Sl.

see full of prunes

(US campus) of an individual, second-rate, unappealing.

1894

Star-Gaz. (Elmira, NY) 15 May 4/3: Yale College Slang [...] It is easy to express your dislike [...] without even bordering on profanity. He is ‘full of tacks’ or ‘prunes,’ ‘has wheels in his head, ’ is a ‘T. Willie,’ a ‘jay,’ a ‘shyster,’ a ‘bag of wind.