Possible Clues:

• Unusually large - jumbo
• One sumo wrestler's rear remarkably huge
• Bigger than big
• Tremendous change, more on thee and me
• Not so little, nor in a mouse
• Very much at large, The moose might run with its large nose
• Me, sour? No, to a great extent
• Huge, very big
• Huge, really big
• Really big