Trim the excess

• Make more suitable for dieters
• Trim a steak, for example
• Prepare chicken, in a way
• Make leaner, as meat
• Prepare, as chicken stock for soup
• Get the lard out
• Trim, as meat
• Make leaner
• Skim the cream off the top, e.g

Wiktionary Word definitions in Wiktionary
vb. To remove fat from a material, especially by the use of solvents