A single girl that is friends with a boy who's in a relationship. When the boy's girlfriend is busy this is who he talks to. In extreme cases he might call this girl mommy and even block her when he's hanging out with his girlfriend. If he blocks her he will immediately unblock her when he is no longer with his actual girlfriend.
Boy (drunk calls replacement girlfriend): "My girlfriend is asleep so I called you."
Replacement Girlfriend: "Oh, so I'm your replacement girlfriend?"
Boy: “Yeah!”
Replacement Girlfriend: "Oh, so I'm your replacement girlfriend?"
Boy: “Yeah!”
by Pudgy Monkey December 9, 2023

Describes a period of time when a friend is unreachable or unavailable due to being shacked up with/obsessed with a new girlfriend. The guy becomes uncontactable as if he is on a deserted island.
'Have you heard from Rick?'
'Nope, he's on girlfriend island. He ain't texting or calling anyone back, totally out of touch'.
'Nope, he's on girlfriend island. He ain't texting or calling anyone back, totally out of touch'.
by jay gee May 21, 2024

May 12 is the day you stay home with your girlfreind to takw care of how we feel, think and act. It also helps to give us a better view on things that could seem unmanageable
May 12 stay home with girlfriend: May 12 I went home to spend the day with my girlfriend instead of going to school, since it was stressful and my girlfriend made me feel much better
by Mi1763 May 11, 2022

Girlfriend: Today is National Message your girlfriend day I want a message right now. Boyfriend: Alright
by NoelJoneson October 14, 2021

by Bootyeater1000 December 31, 2022

by Me bois March 22, 2021

M: Hey babe
F: Yes?
M: you know what today is?
F: Yeah it's Monday
M: no it's national girlfriend day!
F: Yes?
M: you know what today is?
F: Yeah it's Monday
M: no it's national girlfriend day!
by LxzyDxmon January 14, 2022
