“I was thinking a shark or something along those lines.”
You're considering getting a tattoo. You're not sure exactly what you want to get, but you have some ideas. A friend asks you what tattoo you want, and you say this.
I was thinking a shark or something along those lines.
Talk about a decision with this phrase:
A: Which one are you going to get?
B: I'm thinking the blue one.
You say this when you're not completely sure of your decision yet.
This phrase means "something like that".
I think you'd be good as a fitness instructor or something along those lines.
He said "Never let anyone tell you what you can and can't do," or something along those lines.
This phrase is just a little more intellectual-sounding than "something like that".