serve as a guinea pig

Другие идиомы:

• buy a pig in a poke
• road hog
• as fat as a pig
• in a pig's eye
• go whole hog
• piggyback
• go hog-wild
• piggy bank
• ahead of the pack
• alley cat
• as awkward as a cow on roller skates
• as blind as a bat
• as busy as a beaver
• as clean as a hound's tooth
• as conceited as a barber's cat