A sexual act involving the insertion of one's testicals into the anus of a ladyfriend followed by the intense slapping of the penis upon the lower back area.
"Mate im gonna give her a right spudding"
"I gave her 2 hours of solid spuddage"
"Dude she looks like shes been spudded silly"
flirting really obviously with someone
omg Nathalies really spudding with Max