Rumba (Si) - Toys (Yes)
She wants her Rumba (Como) - She wants her toys (what?)
Rumba (Si) - Toys (Yes)
She wants to Rumba (Como) - she wants her toy (what?),
Let truth and 'ere your pretty - even though you are brave
I'm going to love you - I give you joy
Her mouth is big - you have a big mouth
please give him to play (Como) - as he begins to play (what?)

As a means of control than Spanish, but how he uses it, what it means and the rumba is a familiar word for toys.

Rumba (ja)
He wants his Rumba (comment)
Rumba (ja)
He wants his Rumba (comment)
While you are sexy
I'll make you dance.
You have a big mouth,
You can begin to play (as)