1
fool;idiot
あんな二股かける女なんか忘れたわ、ボケ。
Idiot, I've forgotten that two-timing bitch.
2
dotage;senility;dementia
3
suffix
touched in the head (from);out of it (from);feeling sluggish (from);not yet up to par (after)
See also:
時差ぼけ (じさぼけ)
4
funny man (of a comedy duo)
Other forms
呆け 【ぼけ】