[that is that] or [that's that] {informal} The matter is decided; […]

[That makes two of us!] Informal way to say, "I am […]

[That takes care of that!] Informal way to say, "That concludes […]

[That will do!] Informal expression of impatience meaning "stop", "no more". […]

[that'll be the day] {informal} That will never happen. * /Joe […]

[that's --- for you] That's the way (someone or something) is; […]

[That's about the size of it!] Informal way to say, "What […]

[That's the story of my life...] Usually spoken when something goes […]

[That's the ticket!] Informal way to say, "excellent; correct." * /"First […]

[That's the way the ball bounces] or [the cookie crumbles!] Nothing […]