noun
very edge; far border
Refers to the extreme edge or outermost part of a place, often used in phrases like とっぱずれにある (to be located at the very edge).
See also: 取っ (とっ)
彼の家は町のとっぱずれにある。
His house is at the very edge of town.
この店は駅から遠くて、とっぱずれだ。
This shop is far from the station, right on the outskirts.
はずれ means 'outskirts' or 'edge' more generally, while とっぱずれ emphasizes the extreme or farthest edge.
端 is a common word for 'edge' or 'end' of an object or area, but とっぱずれ is more colloquial and specifically refers to the far border of a location.
Derived from 取っ (とっ, a prefix-like element emphasizing extremity) + 外れ (はずれ, 'outskirts' or 'edge'). The exact historical derivation is uncertain, but it is a colloquial formation.