Ty Segall- Girlfriend from the album Melted. 
Lyrics are ear-transcribed by me..

Intro-E|E|E|E|A|E|

                               I've got a girlfriend, she said she loves me
                     She's like a ????, she once told me
                       
Cause she don't mind, nothing nothing
                          She's got a new pal, she said i'm using (??)
                
???????????, I like to lose it
                       
Cause she don't mind, nothing nothing