Definition of "deo"

Some men complain their deos don't work after regular use. Your underarm area can build up immunity to the same product. Alternating two deos can give you total protection.

2005, Drum: A Magazine of Africa for Africa, numbers 687-694, page 32

He brandishes a can of deodorant (deo) spray as he says this, grinning all the time. 'I started using this about two years ago. I didn't realise deos can be so useful in controlling sweating and keeping me feeling fresh. […]

2014, Damodar Mall, Supermarketwala: Secrets To Winning Consumer India

'Maybe it's a teeny bit embarrassing, but seeing that we're good friends, Jabłonovska, don't you use any deo?' 'Any what?' 'Deo. Deodorant.' She pronounced the final T sharply and distinctly.

2014, Julia Franck, West