She's boasting about smoking weed now whilst the kids are home alone (presumably) while she's gone out with her zany mates. That's quite a bold move in an attempt to seem crazy and cool!
Home alone? Or with the ex husband as they usually are for 98% of the week - but hey she's such a hard working single mum doing it all, she deserves the me time to feel like a giddy 16 year old