Emfartsis

When you make a statement and fart (release gas) audibly so as to emphasise the point.

A smelly stamp of approval as it were.

Wife: No honey, my afternoon is bonkers so I need you to pick up the kids!! (Loud fart Emirates)
Husband: Well with that emfartsis, I’ll have to do it.

Gant

The sensation a man feels just as he is about to ejaculate. Like the rush just before it ‘cums’ out.
You know the rush of air in a tunnel before a train arrives at an underground station. That!!!

Ugh...I’m about to gant!!!