In British English slang, particularly of north-west England this means 'lucky' or more accurately 'flukey'. It is usually applied to someone else who has just had a particular piece of outrageous or undeserved luck.

It is typically used with this meaning by young men and schoolboys throughout the north-west of England, not just Liverpool and Merseyside, but also Cheshire, etc. However, the usage can occur in other regions of England as well. It has been used to have this meaning throughout most of the period since at least the end of World War Two.

A pubic hair piece. A toupee for the pubic area/genitals. In the 1700’s when mercury was used to treat sexually transmitted diseases (Gonorrhea or Syphilis) one of the side effects was the loss of pubic hair. To disguise this condition, that was not cured by mercury, a Merkin was employed.

Jammies (N) // (Jam•ees) - An informal term, often used flirtatiously. Not to be confused with pajamas, pjs, or nightwear. Oftened the result of a rejection to a FaceTime call.

pajamas (see also PJs)

a "cooler" word for pajamas

flukey,lucky,defying probability with outrageous good fortune

1. A gun or firearm
2. A penis; a dick or schlong
3. (Usually plural) pajamas