When a female gets water in her vagina by taking a shower and masturbating, shoving it down herself, etc and after that quifs and the water shoots out.
1 The Gremlin swung the Blue Whale into the Cast-Iron Bozo's face with such a wallop that CSB's bright crimson nose popped out from the back of CSB's noggin and plopped to the pavement.
2 Using the strength of just one hairy bicep, the Gremlin walloped the Record-Breaking Pumpkin, batting it onto its endoatmospheric trajectory across the province.
A comon phrase often bellowed by the lesser spotted Oden during rehearsal season. some folk have also reported a new breed of wallop often ending in a huge belch!
"I had sex four times this morning with the next doors missus, WALLOP!!"