Most suitable for Sprat

• Like the most expensive hamburger meat
• Best, as pastrami goes
• Most gaunt
• Most barren
• Most austere
• Most slender
• Having the most to gain?
• Most thin
• Having the least fat

Wiktionary Word definitions in Wiktionary
(en-superlative of: lean ) v (en-archaic second-person singular of lean English)