gaga

adj.	1.	mentally or physically infirm with age.
	2.	marked by foolish or unreasoning fondness; as, gaga over his girlfriend.

Adj.	1.	gaga - mentally or physically infirm with age; "his mother was doddering and frail" Synonyms: doddering, doddery, senile
	2.	gaga - marked by foolish or unreasoning fondness; "she was crazy about him"; "gaga over the rock group's new album"; "he was infatuated with her" Synonyms: enamored, in love, infatuated, soft on, taken with, dotty, smitten, crazy

ape about, apish, asinine, balmy, bananas, barmy, bats, batty, beany, befooled, beguiled, besotted, bonkers, brainless, buffoonish, buggy, bughouse, bugs, bugs on, cockeyed, cracked on, crackers, crazy, crazy about, credulous, cuckoo, daffy, daft, dazed, dippy, dizzy, doting, dotty, dumb, empty-headed, fatuitous, fatuous, featherbrained, featherheaded, flaky, flipped, fluttery, fond, fool, foolheaded, foolish, freaked-out, frivolous, fruitcakey, fruity, fuddled, futile, gaga over, giddy, giddy-brained, giddy-headed, giddy-pated, giddy-witted, gone on, goofy, gulled, harebrain, harebrained, haywire, hepped up over, hipped on, hot about, idiotic, imbecile, inane, inept, infatuated, insane, just plain nuts, kooky, loony, loopy, mad, mad about, maudlin, moronic, nuts, nuts about, nuts on, nutty, off the hinges, off the track, off the wall, potty, rattlebrained, rattleheaded, rattlepated, round the bend, sappy, scatterbrained, scramblebrained, screwball, screwballs, screwy, senseless, sentimental, shatterbrained, silly, slaphappy, starry-eyed over, steamed up about, stupid, thoughtless, turned-on, wacky, wet, wild about, witless