stu paid the prostitute an extra tenner and she let him give her a dirty gallagher
the act of engaging in the doggy style position then fingering the female's anus and smearing a residue of her poo across her eyebrows forming a noel gallagher like monobrow
"stu paid the prostitute an extra tenner and she let him give her a dirty gallagher" What is the definition of "dirty gallagher"?