This means to stick up a pile of dog crap up your nose and then begin to scrape it out and put it back into your bum
"Hey, he did a moaied" said DaCock
"OMG, he's so cool" said DaPuss
The act of sticking dog crap up your nose and then scraping it out and stick it into your wipe. This act is known to improve a person's body. An instant six pack.
"That guy did a moaied" Decock said
"OMG, he's so hot now" Depuss said