snug

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Related to snug as a bug: snug as a bug in a rug

snug

1. (in Britain and Ireland) one of the bars in certain pubs, offering intimate seating for only a few persons
2. Engineering a small peg under the head of a bolt engaging with a slot in the bolted component to prevent the bolt turning when the nut is tightened
References in periodicals archive ?
com Wrapping up warm is essential when the Welsh winter hits, but you'll be snug as a bug if you invest in a proper country coat.
Baby will be snug as a bug in this Star fleece baby wrap by Tuppence and Crumble, priced PS25 at notonthehighstreet.
As snug as a bug in a very old rug, / Snug as a mole in his underground hole.