defo = deformed
'Defo' can be used in a variety of ways. It can be used jokingly, in moments of indignation, and even in a casual setting.
1. Ew did you see that deer? It's so defo...
2. Come on Jill, let's hang out! Don't be defo
3. I throw my hands up in the air sometimes saying A-Yo I'm a defo!