What does "halfpennyworth" mean?

As much as could be bought for a halfpenny (pre- or post-decimalisation).

What is a synonym for "halfpennyworth"?

Common synonyms include: pennyworth, tuppence worth, ;, ace, atom, aught.

Pronounced //ˈheɪpnɪwəθ//.

//ˈheɪpnɪwəθ// noun, slang

noun, slang ·Moderate ·High school level

Noun

1
As much as could be bought for a halfpenny (pre- or post-decimalisation). British, historical
2
the amount that can be bought for a halfpenny wordnet
3
A negligible amount. British, informal
"he's never been a ha'p'orth of bother"
4
One's opinion or thoughts on a matter. British, informal