Definitions by Luiz Fernando

to and fro 

It's another expression which means some like "Go and get back" or "moving on and on" or "restless".

This song is awesome, it makes me sway to and fro.

to and fro by Luiz Fernando January 30, 2009

Duty calls 

It's an expression to say you've got to do something. To do your duty or when something reminds you to do your duty.

An simple example of this is:
When your you're chilling on a sofa and suddenly your baby starts crying and you gotta check it out, then you might say: Oops! Duty calls!!

Duty calls by Luiz Fernando January 29, 2009