lad name 

"lad name" is a masculine substitute for maiden name, used when a man changes his name at marriage. birth name can also be used as a gender-neutral substitute.

When we got married, my husband took my last name. His lad name, though, was Weinerschnitzel, so I guess I can see why.

lad name by fearlesstost March 10, 2017

Lad name 

The male equivalent of a “maiden name”
Its used to describe a males surname before marriage.

Example 1: Oi bruv, hear u was getting married, looks like you’re going be losing that lad name.
Example 2: Davies? No, that was my lad name, im now happily married and called mr webberley

Lad name by McLad December 9, 2018