meaning and usage of some sentences

[negar_aghili]

hi my dear master
i watched a movie last week and i asked the odd sentences from the ( ask a teacher ) part of this site . but i didn't get any answer . i'll asked themagain . please help me with them they were used in ( Mr and Mrs Smith )

1- poke around the engine
2-let's pump the road
3-if s.th happens 0 would be 9
4-i'm lost
5-you say construction
6-there is a struggle of this material .
7-he got his hands on this first .


thanks in advance

[Tdol]

1 poke around = try, not very scientifically, to find what's wrong
2 get going
4 confused
7 he got it first so it's his

The others don't make much sense to me without the context.