v.
Pronunciation: ' pi-g ē - ˌ bak
Variant: also pick · a · back \ ' pi-g ē -, ' pi-k ə - \
Function: adverb
Etymology: alteration of earlier a pick pack, of unknown origin
Date: 1565
1 : up on the back and shoulders
2 : on or as if on the back of another especially : on a railroad flatcar