I can think of two meanings for flakey The first one means "made of small pieces" The second one is used to describe a person. If a person is "flakey" then it means that they make promises or commitments that they do not usually keep. A person that is not reliable is "flakey" For example, if your friend tells you that she will meet you at a party together, but does not come, she is "flakey"

Hi it means that the person is not competent enough to do the work.

Simple answer: he's not "together" (organised, disciplined) and instead comes apart in flakes. Not literally of course. ;)

Flaky or flakey: Consisting of flakes or of small, loose masses. Moby Thesaurus words for "flaky": abnormal, anomalous, apish, arbitrary, asinine, asperous, balmy, bananas, barmy, bats, batty, beany, befooled, beguiled, besotted, bonkers, brainless, branny, buffoonish, buggy, bughouse, bugs, capricious, chalklike, chalky, cockeyed, comminute, comminuted, crackers, crank, crankish, cranky, crazy, credulous, crotchety, crushed, cuckoo, daffy, daft, dazed, detrital, detrited, deviant, deviative, different, dippy, disintegrated, divergent, dizzy, doting, dotty, dumb, dusty, eccentric, efflorescent, erratic, exceptional, fanciful, fantasied, fantastic, farinaceous, fatuitous, fatuous, fey, fine, flipped, flocculent, floury, fond, fool, foolheaded, foolish, freaked-out, freakish, fruitcakey, fruity, fuddled, funny, furfuraceous, futile, gaga, gone to dust, goofy, grated, ground, gulled, harebrained, haywire, humorsome, idiocratic, idiosyncratic, idiotic, imbecile, impalpable, inane, inept, infatuated, insane, irregular, just plain nuts, kinky, kooky, lentiginous, lepidote, levigated, loony, loopy, mad, maggoty, maudlin, mealy, milled, moody, moronic, motiveless, notional, nuts, nutty, odd, oddball, off the hinges, off the track, off the wall, peculiar, pestled, petulant, potty, powdered, powdery, pulverant, pulverized, pulverulent, queer, quirky, reduced to powder, round the bend, sappy, scabby, scabious, scabrous, scaly, scobicular, scobiform, screwball, screwballs, screwy, scurfy, senseless, sentimental, sharded, shredded, silly, singular, slaphappy, squamous, strange, stupid, temperamental, thoughtless, triturated, twisted, unconventional, unnatural, unreasonable, unrestrained, vagarious, vagrant, wacky, wanton, wayward, wet, whimsical, witless I hope, you got its meaning :)