Clear Liquid out of boa mouth?

[laceybailey]

Hey everyone, I'm new to this website and dont know if this is the proper place for this, but here we go anyway.

I fed my 3 foot long boa a small rat two days ago. He got it down with out a problem at all. The next morning half of him was burried under the Aspen so I poked his lower half to let him know i was going to get him out and he acted dead. I couldn't even see him breathing. He let me move his whole body back and forth and didn't even "flex" he was just limp. Right when i was going to prounce him dead he started moving.

Today I picked him up and he still has a buldge where the rat is like he can't get it digested. I read that handling them can help the digestion process so i did and then he looked at me and kind of twitched, which he did the day before as well, then opened his mouth and clear liquid like water started coming out and dripped all over me.

What is this?