to grow senile; to be childish with age; to be mentally slow; to be befuddled; to play stupid; to say something stupid (oft. on purpose; esp. as part of a comedic routine)
fool; idiot; dotage; senility; touched in the head (from); out of it (from)
peace at any price (attitude); peace idiot; peace senility; complacency about peace
person obsessed with thoughts of sex
great idiot; fool; (saying) something silly or stupid
doing or saying something a little stupid