Ok so a bit of a noobish question but.. whatever. I need to know how to use my amp's effects loop. My amp is in my sig. there is an effects loop send and return and I don't know what to do
I guarantee the answer can be found in one of the stickies on this board.
I don't give a shit if you listen to me or not
Plug a cord into the SEND outlet, and connect the other end to the input of the first effect in your chain. Connect the effects as normal, then with another cord, connect the output jack of the last effect to the RETURN jack on the back of the amp.

And just in case you don't know - general rule is that it goes in the effects loop if it modulates the signal. Delay, phaser, chorus, etc. Something like a distortion pedal would not go into the effects loop.