anything/nothing/something like that
anything like that
Similar to or like what has just been said or described. Do you want a soda or anything like that?
nothing like that
Very different from what has just been said or described. Mom, it was nothing like that—I didn't break curfew on purpose, I swear. A: "Did you two used to have a thing?" B: "Nothing like that. We were just coworkers."
1. Similar to or like what has just been said or described. In this usage, "that" is used after "something." Do you want a soda or something like that?
2. Approximately or roughly. The phrase is used before an estimated amount or total. If you're expecting something like 50 people, then you better get some more chairs in here.
something like that
Something along those lines; something similar to that. A: "So you work for a dictionary, huh? What do you do, write definitions for them?" B: "Yeah, something like that."