felch belch Share definition Flag a warm, gurgling belch that regurgitates the semen swallowed from felching. While a felch belch can be experienced by anyone who partakes in the act of felching, it is most common in the gay world. felch belch by boombala September 10, 2006 0 0 Get merch Get the felch belch mug. Buy Now — $32.95 See more merch