But your mom, Anon. YOUR MOM.
Agree. Limey is a Brit; possibly an Australian.
This term (and the earlier lime-juicer) was probably first applied by Americans to British sailors, used with disparaging intent and perceived as insulting. Historically, it also referred to a British immigrant in Australia. Later it became a more neutral nickname for any British person.
Fuckinay, I love you guys, no homo.