The term "First Laddie" is a fairly new word and often used to refer to the husband of a female president. However, there are other synonyms that can be used instead of "First Laddie" such as "First Gentleman," "First Husband," or "Presidential Spouse". The usage of these synonyms depends on the gender of the spouse of the President. If the First Lady's spouse is a male, "First Gentleman" or "First Husband" can be used. On the other hand, if the First Lady's spouse is of a gender different from male or female, "Presidential Spouse" can be used as a neutral term.