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1.
A company or institution that is rarely honest with the public.

From the word Zebu meaning lies, deception, bullshit which is derived from practice of some UK pubs and restaurants to pass off tough Brazilian zebu meat as bargain-priced “British” steaks.
Ryanair - the UK's least favourite budget airline - is a classic gazebu.

Though they often advertise 'free' flights within Europe, there are several hidden costs that only become apparent as you embark on the booking process such as; charges for check-in, baggage, boarding and babies (you may travel free but your infant costs £20)...
So, ultimately, their claim to offer free flights is complete and utter zebu.
by Redvers21 October 14, 2009