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

See also: involved

• Ambrose Everett Burnside
• Ambrose Gwinett Bierce
• ambrosia
• Ambrosia artemisiifolia
• Ambrosia psilostachya
• Ambrosia trifida
• Ambrosiaceae
• ambrosial
• ambrosian
• ambulacral
• ambulacrum
• ambulance
• ambulance chaser
• ambulant
• ambulant plague
• ambulate
• ambulation
• ambulatory
• ambulatory plague
• ambuscade
• ambush
• ambusher
• Ambystoma
• Ambystoma maculatum
• Ambystoma mexicanum