Wheelhouse...

Lois: Lana (Clark's former love) is gone for good. 

Time to get back in the saddle, buckaroo. But this go-round, you need
to look outside your wheelhouse. What does she mean?

Clark: I didn't know I had a wheelhouse. 

Lois: Of course you do... pretty, friendly,
damsel-In-Distressy. You need to try another scoop
of the 31 flavors, maybe a little less sweet vanilla and a lot more wild cherry.

Is she refering to ice crea? As in to try dating another woman that's not so

nice but more adventurous? 

Yes, 31-flavors is a well-known ice cream store in the US, also known as Baskin-Robbins.

Referring to someone as "vanilla" is a common slang for normal, perhaps a little boring.

No.

I didn't expect this to be such a difficult word to find a definition for. The literal meaning is easily found, here among other places: [link]

The figurative or idiomatic meaning is much more difficult. I did several google searches without finding a definition that I think really captures the usual meaning.

The best I came up with in my google searches is this from baseball: wheelhouse — from the term for a batter's power zone, usually waist high and over the middle of the plate. [link] In this case the pitch is one that the batter can eaisly hit for distance, possibly a home run. By extension, in everyday use, something that is in someone's wheelhouse is in their comfort zone, it is something they are accustomed to and know how to deal with.

 Whoa, guys! Sometimes your language is so complicated.

And by the reaction of Grammar Geek here, I'd say even you natives

have difficulties understanding some expressions. I mean with all the new

serial movies that pop up all the time your language expands even more in allusive kind of way.

How do you manage to keep up? 

One BIG thanks, Ray!