We found one dictionary that defines the word longshoreman's cap:

General (1 matching dictionary)

1. longshoreman's cap: Wiktionary

Definitions from Wiktionary (longshoreman's cap) ▸ noun:  flat cap ▸ Words similar to longshoreman's cap ▸ Usage examples for longshoreman's cap ▸ Idioms related to longshoreman's cap ▸ Wikipedia articles (New!) ▸ Words that often appear near longshoreman's cap ▸ Rhymes of longshoreman's cap ▸ Invented words related to longshoreman's cap