1. This is an idiom meaning 'same difference'.
2. Two participles, both having to do with jumping.
3. The first word is, strictly speaking, ungrammatical today, but the expression is very common in spoken German.

1. Jacke wie Hose.
2. Das selbe in Grün.

I'm not sure where this comes from. Translates to something like 'hopped like jumped'. It's very idiomatic but seldom used in writing, so don't feel discouraged if you've never read it anywhere.