I have been known on occasion (coughcoughallthetime) to say the following:

• "whatever tickles your chicken"
• "shit-a-brick"
• "ah-yo"
• "for the love of all that is holy"
• "I could give a flying monkey’s arse"
• "I trust her about as far as I could throw her"
• "Ya mum/Ya face/Ya mum’s face"
• "You’re a hackneyed concept"
• "That’s so retro"
• “…and everything. And stuff.”
• "Jesus Christ on a pogo stick."
• "Sweet dancing Moses."

and the most important one of all:

• "Yah."