Here’s a classic song which uses the idiom “Snug as a bug in a rug.” Enjoy!:

Snug as a Bug in a Rug
by Flatbush

Every time you say you feel that way
Makes me so afraid you’re gonna go
You’re gonna go!

When I hear your voice on the telephone
My emotions start heading towards the danger zone
And when I finally see what’s behind the voice of hurt
There’s only one thing to say, and these are the words:

I love you and I like you too, yeah
I call you mama like your baby do
Of all the girls you’re the one that I’ve dug
Your love keeps me warm – just as snug as a bug in a rug

You’re always with me even though we’re far apart
I have always given you the biggest part of my heart
Even if you’re feeling like our love is going astray
My love is with you each and every day

I love you and I like you too, yeah
I call you mama like your baby do
Of all the girls you’re the one that I’ve dug
Your love keeps me warm – just as snug as a bug in a rug

Every time you say you feel that way
Makes me so afraid you’re gonna go
You’re gonna go!

It is awful hard to see just where our love has been
I’m not sure you’ve even heard a single word I’ve said
Although we’re torn part by things we couldn’t understand
Just hold me and I’ll always try to be your lovin’ man

I love you and I like you too, yeah
I call you mama like your baby do
Of all the girls you’re the one that I’ve dug
Your love keeps me warm – just as snug as a bug in a rug

I love you and I like you too, yeah
I call you mama like your baby do
Of all the girls you’re the one that I’ve dug
Your love keeps me warm – just as snug as a bug in a rug

gonna = going to

I’ve dug = I’ve really liked

astray = lost, not going the right way