up top

up top

1. In one's head (referring to intelligence). Usually used in the negative. Sam's new girlfriend is cute and very sweet, but good lord, not much up top!
2. slang Give me a high five! Nice shot, Dan! Up top!
See also: top, up
Farlex Dictionary of Idioms.

up top

in the brain (with reference to intelligence). British informal
See also: top, up
Farlex Partner Idioms Dictionary

up ˈtop

(British English, informal) used to talk about somebody’s intelligence: He doesn’t have much up top, I’m afraid.
See also: top, up
Farlex Partner Idioms Dictionary
See also:
  • flash
  • flash on
  • flashing
  • bene
  • blimp
  • blimp out
  • gun
  • guns
  • brassic lint
  • drop