Wiktionary
ask for
vb. 1 to request 2 (context idiomatic English) To increase the likelihood of something by persisting in some action; to invite.
WordNet
ask for
v. increase the likelihood of; "ask for trouble"; "invite criticism" [syn: invite]
Usage examples of "ask for".
Serve it medium-rare with a little mint jelly on the side, Mrs Antes, and your family will never ask for roast chicken again.