Nigerian Slang

Everyone in Lagos speaks a version of Pigeon English mixed with Hausa, Ibu and Youraba. Here's the term's I've kept up with:

Hownow?- How are you?

I day fine- I'm good thanks 

Ecaro- Youraba term for good morning

You're Welcome- You are welcome here. 

I beg- Please 

Ah ah- Very common way to start off sentences to gain the persons attention, sometimes in place of ums. 
Fo fo- Pounded Yams
Moi moi- beans pounded together and boiled

I'll keep em' coming as I continue to figure out what things really mean.