guck /guk/ (esp N American; slang)

1. Slimy, gooey muck
2. Anything unpleasant or unappealing

• first fixes
• first floor
• first-floor
• first flush
• first-foot
• first-footed
• first-footer
• first-footers
• first-footing
• first-foots
• first-fruit
• first-fruits
• first gear
• first generation
• first-hand
• first in, first out
• first intention healing
• First International
• first joint
• first ladies
• first lady
• first lieutenant
• first lieutenants
• first light
• firstling