vainglorious boasting

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For all of Putin's vainglorious boasting, the Russians can't defeat ISIS.
The time has surely come to set aside the mythmaking, heroics and vainglorious boasting and take a cool, rational look at the first ascent of Everest.
Suppose, for a moment, this was nothing more than idle, vainglorious boasting from a somewhat deranged girl not long out of college.