There are times when euphemisms must be used to avoid offending maiden aunts:
We could have subsidies, bailouts, and political favors. But who gets what in such a system will depend upon the position in the political alimentary canal of the supplicant.
Can’t quite say, in a mainstream American publication, “whose lips are firmly attached to the political sphincter”, or “who gives analingus to politicians” or even “who inhabits the political colon” let alone who kisses political ass.
Fortunately English is an adaptable language.