reprise from January 2020:
fress is a loanword verb from either German or Yiddish implying eating heartily or snacking frequently.
delicatessen has been applied to both high-end retail food stores selling unusual and imported prepared foods, and to restaurants preparing German, Jewish or other ethnic cuisine (frequently, the two functions are combined). It may also refer to the products purchased in these outlets.
Sushi is not among the expected foods in such an establishment, so the analogy to a pelicatessen for waterfowl has been unexplored until now. At least in Canadian official documents, for the sake of gender-neutrality, fishermen are referred to as fishers.
After initially using this neologism (word-creation) as a descriptor on the blog "Edifying Nonsense", and misconstruing it as his personal invention, the author became aware, via the internet, that there is a restaurant located at a resort on Bald Head Island, North Carolina with that name. Although that fact is of interest, it is of limited relevance. Seabirds are apparently not served at the establishment, either as customers, or as menu-fare.
pelicans strolling after a meal at the 'pelicatessen'
You can review these illustrated verses in a wider context by proceeding to 'Immersible Verse: Limericks about Waterfowl' on the full-service blog 'Edifying Nonsense'.