Never knew this, but apparently trumping is used colloquially by some in England to mean farting.
"In British slang, however, “to trump� (intransitive verb) also means to expel gas through the anus — e.g. Trumped from eating too much baked beans — often in a highly audible way (as in with trailing sound)."
Now what is that unpleasant smell emerging from the US political scene?