What is Tappet?
1.
Moving part of an engine that rattles when loose resulting in engine failure. Slang usage as someone who's tappets are slightly loose (not quite with it - a.k.a someone who is a few sandwiches short of a picnic)
South African variation is of a tappet being a
Donny is a real tappet.
Harvey is so tappet
See
Random Words:
1.
an idiot and fake emo
Peeping Tom is an emochicken
See emo, chicken, emochicken, foxtrot, uniform, charlie, kilo..