Meaning

2 senses
  1. A backpack.

  2. (slang, vulgar)The back of the testicles.

Origin

Compound of back + sack, possibly influenced by backpack.

Compound of back + sack, possibly influenced by backpack.

Wiktionary, CC BY-SA 4.0 · source

Forms

plural: backsacks
Singularbacksack
Pluralbacksacks

regular

See also

neighbours in the dictionary
backsack — meaning, examples, forms, synonyms | Krumeto