Infinite Summer

O.N.A.N. - onanism, masturbation. Genius line about "the right hand of O.N.A.N." or something to that effect.

Considering the book's overarching theme of personal entertainment culture, I think it's no accident that we're hearing about "TP's" (toilet paper, colloquially) all over the place.

What else?

I don't know if I would consider it toilet humor, but in the opening section there are some amazing descriptions of a men's bathroom:

"You have to love old-fashioned men's rooms: the citrus scent of deodorant disks in the long porcelain trough: the stalls with wooden doors in frames of cool marble; these thin sinks in rows, basins supported by rickety alphabets of exposed plumbing; mirrors over metal shelves; behind all the voices the slight sound of a ceaseless trickle, inflated by echo against wet porcelain and a cold tile floor whose mosaic pattern looks almost Islamic at this close range."

Also, statements like "I am concentrating docilely on the question why U.S. restrooms always appear to us as infirmaries for public distress, the place to regain control." are insightful and reminiscent of the bathroom attendant scene in .