Derogitary term, roughly equivalent to idiot. More insulting than berk, but less insulting that gimp.
Thought to originate in the Victorian Era meaning a lower-class foreigner

A person with an outwardly dominant, masculine, or aggressive personality, but who also enthusiastically takes on the submissive or "bottom" role in the bedroom.

A middle aged straight man with facial hair. The opposite of a twink.
Like yin and yang, there is twink and twonk. Every twink has a twonk, and vice versa.

A cross between a twat, plonker and wanker. Not used as a serious insult, more of a friendly, playful insult.

An idiot, a fool

general idiot, someone who has done something stupid, who has cocked up.

A Twonk is essentially just a Twink (a scrony prepubescent looking gay man) but lacking the slenderness most commonly associated with twinks, essentially a twonk is just a fat or “husky” twink

You could also think of a twonk as a mix between a twink and a bear