放飛機

[fong3 fei1 gei1]
lit. to throw a (paper) plane
(not mentioned in idiom)
tr. not turn up for a meeting
e.g.
「唉，佢又放我飛機啦」
(*sigh* he failed to turn up for my date again)
「都唔系第一次㗎啦」
(it's not the first time he has done that)