belch 
(bĕlch)
(bĕlch)v. belched, belch·ing, belch·es
v.intr.
1. To expel gas noisily from the stomach through the mouth; burp.
2. To erupt or explode.
3. To gush forth.
v.tr.
1. To expel (gas) noisily from the stomach through the mouth; burp.
2. To eject violently.
[Middle English belchen, from Old English bealcettan or from *bealcian; akin to bealcan.]
belch n.