all that, adj. — Green’s Dictionary of Slang

all that adj.

also all of that

[SE phr. and all that, and all the rest of it]

1. (also all that and then some) just as described.

1919

Van Loan ‘The Bone Doctor’ in Score by Innings (2004) 361: ‘Ye–s,’ says Murph; ‘he’s all of that and then some.’.

2. of an object, excellent, wonderful.

1962		F. Norman Guntz 28: The programme wasn’t all that.
1998		Odessa American (TX) 17 Nov. 24/2: The Windy City, Chicago, is all that.
1999		Hip-Hop Connection Aug. 21: All That Something that is supremely good. As in ‘The Pussy’s All That’ by Red Hot Lover Tone.
2000		W.D. Myers ‘Block Party–145th Street Style’ in 145th Street 144: I have eaten girlfriend’s potato salad and it’s not all that .

3. (orig. US teen) of a person, in possession of all good qualities; often used sarcastically, thus to describe someone conceited; esp. in phr. think one is all that.

1989–2003		R.O. Scott Gay Sl. Dict. 🌐 all that: adj. as good as it gets. (‘This Queen thinks she’s all that, and more!’).
1993		Eble Campus Sl. Apr. 1: all that – the highest in achievement. Said sarcastically.
1996		W.D. Myers Slam! 138: Country Day had some nice uniforms but they didn’t have anybody on their team who was all that.
1997–2000		Da Bomb 🌐 1: All that: [...] 2. Superior to others; conceited. ‘Susie thinks that she is all that.’.
1998		Source Nov. 85: The Notorious B.I.G. was all that and more on the mic.
2000		N. Barlay Crumple Zone 152: Marcus says that when you’ve been taken down a peg or two [...] you come to understand that, after all, as a guy, you ain’t all that.
2002		Teen Lingo: The Source for Youth Ministry 🌐 all that of a superior nature; wonderful or attractive. ‘That boy is all that.’.
2004		Louis Slipperz ‘Spend It On’ 🎵 Act like you’re all that.
2004		Dizzee Rascall ‘Flyin’’ 🎵 You could say I think I’m all that.
2008		Simon & Lehane ‘Clarifications’ Wire ser. 5 ep. 8 [TV script] Marloe was all that over Junebug called him a name.

In phrases

all that and a bag of chips (also all that and your bus fare home) [note that chips in the US are crisps in the UK]

(US teen) absolutely excellent.

1991		Baltimore Sun (MD) 19 Aug. Today 3C/6: Like people have been saying ‘all that,’ meaning something is really cool. But now they’re saying, ‘all that and a bag of chips.’ .
1993		Eble Campus Sl. Apr. 1: all that and a bag of chips – conceited, thinking highly of oneself; ‘Now that he has a new Beamer, he thinks he’s all that and a bag of chips’.
2000		P. Howard Miseducation of Ross O’Carroll-Kelly (2004) 213: Thinking he’s all that and your bus fare home.
2002		Nomad World 🌐 A few people even asked me if Bose made the unit. The Playdock is just absolutely ‘all that and a bag of chips’, a MUST HAVE for the music lover.
2005		A. Tooms Rookie’s Playbook 70: This teacher thought she was all that and a bag of chips. She just walked around here like she was the queen of the prom.

give it all that (v.)

to boast, to show off.

1977		D. Powis Signs of Crime 172: All that, giving it Bragging or showing off.
1998		M. Newall ‘Sir Gawayne and the Grene Knyght’ in Indep. Rev. 26 Dec. 1: The grebo was giving it alle of thatte.