Possible Clues:

• Creature in “Abominable”
• Sasquatch's Asian cousin
• "Tintin in Tibet" creature
• Creature of disputed existence
• "Never Feed a __ Spaghetti": rhyming board book
• Elusive snowman of Nepal
• Legend of the mountains
• Now essentially extinct mountain-dweller?
• Legendarily giant white dude
• Mountain-dwelling cryptid