This is clearly not a boast; it seems, rather, a shamed admission of petty, callow cruelty.
With 126 days of rain per year, Davos is quite wet, but it does boast the largest ski resort in Switzerland.
Prime Minister Nouri al-Maliki remains the one Iraqi political leader who cannot boast he is backed by a militia.
mid-13c., "arrogance, presumption, pride, vanity;" c.1300, "a brag, boastful speech," from Anglo-French bost "ostentation," probably via Scandinavian (cf. Norwegian baus "proud, bold, daring"), from Proto-Germanic *bausia "to blow up, puff up, swell" (cf. Middle High German bus "swelling," dialectal German baustern "to swell;" Middle Dutch bose, Dutch boos "evil, wicked, angry," Old High German bosi "worthless, slanderous," German böse "evil, bad, angry"), from PIE *bhou-, variant of root *beu-, *bheu- "to grow, swell" (see bull (n.2)).
The notion apparently is of being "puffed up" with pride; cf. Old English belgan "to become angry, offend, provoke," belg "anger, arrogance," from the same root as bellows and belly (n.). Related: Boasted; boasting. An Old English word for "boasting" was micelsprecende, "big talk."
early 14c., "to brag, speak arrogantly;" from the same source as boast (n.). Related: Boasted; boasting.