[Verse 1]
Secondhand smoke in the air I breathe
Your hands getting close all over me
Say you shouldn't know me and you wouldn't
Give in to get what you need

[Chorus]
I'm just your once a week habit
Once in a while, gotta have it
Know you're gonna cave in
Come over when you're cravin'
Always wait 'til the night ends
Then you act so surprised when
You're wakin' up next to me
I guess I'll just always be
Your once a week habit
(Your once a week habit)

[Verse 2]
I don't mind the taste of cheap whiskey
As long as it's gone when you kiss me
It's not about how fast you leave
But sometimes I just wish you'd stop and see

[Chorus]
I'm just your once a week habit
Once in a while, gotta have it
Know you're gonna cave in
Come over when you're cravin'
Always wait 'til the night ends
Then you act so surprised when
You're wakin' up next to me
I guess I'll just always be
Your once a week habit
(Your once a week habit)

[Bridge]
Oh, you say you're gonna kick it
But you know you're always fixin'
You're never gonna quit, no, no
You're a grade A addict
Never knowing how it happened
There's always an excuse, oh why
[Chorus]
I'm just your once a week habit
Once in a while, gotta have it
Know you're gonna cave in
Come over when you're cravin'
Always wait 'til the night ends
Then you act so surprised when
You're wakin' up next to me
I guess I'll just always be
Your once a week habit
(Your once a week habit)
(Your once a week habit)

[Outro]
You're wakin' up next to me
I guess I'll just always be
Your once a week habit