dotty

Etymology 1

See dote, or compare totty (“unsteady, dizzy”).

adj

1. (Britain, colloquial) Mildly insane or eccentric; often, senile.
   My nan has got dottier and dottier since passing the age of eighty.
   Mr. Fox stopped digging and stared at Badger as though he had gone completely dotty. "My dear old furry frump," he said, "do you know anyone in the whole world who wouldn't swipe a few chickens if their children were starving to death?" 1970, Roald Dahl, Fantastic Mr. Fox, New York: Alfred A. Knopf, page 45
2. (UK, dated) Having an unsteady gait.

Etymology 2

dot + -y

adj

1. Having many dots.
   Look at the dotty pattern on that cheetah's fur.

noun

1. (MLE) A shotgun.
   Never bummy but I'm scummy fam, I used to burgle houses Then some OGs was consignin me them ounces Wet man round me had me feeling like I’m drownin Fam we really went there with a brownin Me and next man really went there with a dotty 05 murder squad nicked me for a [censored] 2013, “Mad Years”, in Potter Payper (lyrics), Training Day, performed by Potter Payper
   They dont know what I’ve been through Red dot on his head like a hindu Scrams, Face just stack for the Wesson Ca’ be the gunplay that we’re into It’s like them man chill with the singer Two dot dots there in the dinger Yard man’s got a dotty in the rave But he’s still tryna do the La Linga We’ve had guns and shanks without awareness We’ve had guns and shanks we’re so fearless 2017, “Mad About Bars”, TMula (lyrics), performed by 86 (TMula x Scrams)
   Bro I’m booky, I’ll take your food if my belly starts rumblin They rap about bootings, they ain’t blammed nobody Hold that properly when I bang that dotty I put sniff in a rex, and I slang that bobby 2017, “Next Up?”, Digga D (lyrics), performed by 1011 (Digga D x Sav'O x T.Y)
   I’m out here from the night till dawn 2020, “Respawn”, Cillian (lyrics), chorus