English for Today by Ganiu Abisoye Bamgbose (Dr GAB)

ON BODY CONDITION

He has ~open teeth~ (nonstandard).
He is *gap-toothed* (standard).
Having spaces between the front teeth is being gap-toothed, and the space itself is called diastema.

The young lady has ~k-leg~ (nonstandard).
The young lady is *knock-kneed* (standard).
Someone who is knock-kneed has legs which turn inwards at the knees.

Some ~bowl legged~ persons are good footballers (nonstandard).
Some *bow-legged* persons are good footballers.
The noun is “bow legs”, not “bowl legs”.
GAB