Seriously, dude, you made a complete prat of yourself here.
British Dictionary definitions for prat
prat
/præt/
noun
1.
(slang) an incompetent or ineffectual person: often used as a term of abuse
Word Origin
C20: probably special use of C16 prat buttocks, of unknown origin
Word Origin and History for prat
n.
"buttock," 1560s, criminals' slang, of unknown origin. Later in U.S. criminal slang, "hip pocket" (1914), and in British slang "contemptible person" (1968).