noun which may take the genitive case particle 'no', noun
dirt cheap; very cheap; worthless
Describes something sold in bulk at a very low price, often implying the items are treated as nearly worthless. Used attributively with の or as a noun.
The vegetables at this shop are sold dirt cheap by the lot.
lot (in a sale); bulk purchase unit
Refers to a pile or batch of items sold together for a single price, often at markets or clearance sales.
I end up buying only dirt-cheap clothes.
I bought a lot of apples at the market for a set price.
まとめ買い is the act of buying in bulk, whereas 一山いくら is the pricing method or the lot itself.
Standard kanji-kana spelling.
Alternate spelling using 幾ら for いくら; less common but seen.
Compound of 一山 (ひとやま, 'one pile/lot') and いくら ('how much'), literally 'how much for one lot?'. The phrase evolved into a noun/adjective meaning something sold cheaply in bulk.