Rocker Travis Barker's on/off romance with Shanna Moakler appears to be very much off again after he blasted "deadbeat moms" via the Twitter.com social site.

The drummer wasn't naming names but appeared very upset about one particular mother - and gossips insist he was going after his ex-wife.

He wrote, "Kids are not to be used as weapons. Deadbeat moms that sleep all day, seeking money, attention like 2 do so. Just hurts the kids in the end."

He added, "Giving birth 2 a child doesn't make u a good mom. Taking care of them, loving them, waking up with them, spending time with them does."

Moakler and Barker share two kids together. They divorced last year but reconciled after the Blink 182 star's plane crash in September.

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(This news article provided by World Entertainment News Network)