Gob all over my carnation

In Radio Active 5.3, 'Out Of Your Depth', one of the jobs Martin Brown attempts to do is that of an actor. Director Ronnie Crump tries to help him rehearse his one line,

Ooh it were terrible, gob all over my carnation

I find that 'Gob all over my carnation' is a line from The Erpingham Camp by Joe Orton. Scene 7 if you're interested.