Green’s Dictionary of Slang

porcelain god n.

also porcelain goddess, enamel god

(US campus) joc. terms for a lavatory, in the context of vomiting; in phr. below and similar.

In phrases

kiss the porcelain god (v.) (also kiss the porcelain goddess, bow to the porcelain god/goddess, hug..., make love to..., pray to..., worship..., pray on the porcelain altar, pray to the enamel god, hug the throne, hug the porcelain, worship the throne)

(US campus) to vomit.

[[US]J. Sayles Union Dues (1978) 279: Happily hugging the toilet all night long with your barf buddies].
[US]Eble Campus Sl. Mar. 7: toss groceries, toss cookies – vomit (synonyms: [...] worship the throne).
[US]Eble Campus Sl. Spring 6: toss cookies [...] hug the throne.
[US]Eble Campus Sl. Fall 5: pray to the enamel god – vomit in the toilet in a drunken stupor. [Ibid.] 7: talk into a porcelain telephone – vomit.
[US]Eble Campus Sl. Mar. 7: worship the porcelain goddess – vomit.
[US] W. Safire What’s The Good Word? 303: Yes [...] ‘Praying to the Great White Porcelain God’ is quite descriptive, but may I offer my own personal favorite? ‘Blowing your chunks.’.
[UK]M. Belmonte Compter Science and Why (1993) [Internet] I was struck with [...] the plethora of words and phrases meaning ‘vomit’ and/or ‘to vomit’ [...] At most American colleges and universities, a weekend cannot pass without seeing multitudes [...] worship the porcelain, pray on the porcelain altar, pray to the porcelain prince.
[US]P. Munro Sl. U. 44: bow to the porcelain god/bow to the porcelain goddess to vomit into the toilet. [Ibid.] 112: hug the porcelain god/hug the porcelain goddess to vomit into the toilet. [Ibid.] 127: I have the feeling that I’m going to be making love to the porcelain goddess for a while tonight. [Ibid.] 152: pray to the porcelain god/pray to the porcelain goddess to vomit into the toilet. [Ibid.] 208: worship the porcelain god/worship the porcelain goddess to vomit into the toilet.
J. Foley Susanna Siegelbaum Gives Up Guys 66: ‘Kiss the porcelain god,’ he said. ‘Huh?’ ‘Puke in the toilet,’ he explained.
[Aus]Syndey Morn. Herald 7 June 35/5: Everything you wanted to know about [...] driving the porcelain bus and that old standy-by giving birth to a politician.
[US]Eble Campus Sl. Oct. 5: talk to the porcelain god – vomit.
W. Hill Vampire’s Kiss 359: After selling Buicks and hugging the porcelain god, Grimm had felt a little better.
[US]Eble Sl. and Sociability 72: A similar expression for ‘vomit’ is worship the porcelain goddess.
Online Sl. Dict. [Internet] hug the porcelain goddess. v 1. to vomit. (‘Yesterday I wasn’t at school because I was hugging the porcelain goddess.’) [Ibid.] hug the throne v 1. to vomit. (‘Man, I was hugging the throne all night last night.’). [Ibid.] pray to the porcelain god v 1. to vomit. (‘I was praying to the porcelain god after eating that.’). [Ibid.] worship the porcelain goddess v 1. to vomit. (‘She’s in the bathroom worshipping the porcelain goddess.’).
[UK]K. Richards Life 261: John would inevitaly end up in my john, hugging the porcelain.