What is Cracked A Fat?
1.
Commonly used Australian term, to obtain an erection. Can often be used as an insult in a comical sense.
Moff CRACKED A FAT!!!!!
2.
To gain an erection,male penis becomes long and hard.
on looking at your girlfriend i have cracked a fat
3.
To gain an erection
I seen her panties as she bent over and I cracked a fat right there and then.
See