A reference to a type of old-time slapstick humor reminiscent of serious but clueless people slipping on banana peels, causing a surge of wildly insensitive hysteria on the part of onlookers.
His whole being, starting in his early youth, was rooted in banana slapstickreality and this caused him to feel like an alien in this day and age.
According toMarguerite Perrin, religious expert from the FOX show Trading Spouses, it is a variation of the word "physic" that is used while ranting in a rage.