1. Deeply involved
   "neck-deep in work"
   - up to my neck, up to your neck, up to her neck, up to his neck, up to our necks, up to their necks

See also: involved

• lactating
• lactation
• lacteal
• lactic
• lactic acid
• lactiferous
• lactiferous duct
• lactifuge
• lacto-
• Lactobacillaceae
• lactobacillus
• Lactobacillus acidophilus
• Lactobacteriaceae
• lactoflavin
• lactogen
• lactogenic
• lactogenic hormone
• lactone
• lactonic
• Lactophrys
• Lactophrys quadricornis
• lactose
• lactose intolerance
• lactosuria
• lactovegetarian