Gwatch

Origin - The University of Birmingham - a chap rather accustomed to brightly coloured trousers.

Commonly used, though ill approved term (especially when uttered in the presence of a female) making reference to the genitalia of a female/general presence of a female.

Favoured most notably for its distinct onomatopoeic effect.

"Excuse me gwatch"

"Alright gwatch"

"Her gwatch flaps are epically large"