noun, noun which may take the genitive case particle 'no'
with meals and transportation paid; all expenses covered
Colloquial term used in job offers or invitations to indicate that meals and transport costs are covered by the employer or host. Often appears in phrases like アゴアシ付きのバイト.
このバイトはアゴアシ付きだから、交通費も食事代もかからない。
This part-time job covers meals and transport, so you won't have to pay for travel or food.
アゴアシ付きの旅
If it's a trip with all expenses paid, I can join without worry.
From 顎 (あご, 'jaw', metonymically for eating) and 足 (あし, 'leg/foot', metonymically for transportation), plus 付き (つき, 'attached'). The exact origin is uncertain, but it likely arose as casual slang for job perks.