Possible Clues:

• 1980s insult line
• Words heeded by Alice
• Directive obeyed by Alice
• Words on an 'Animal House' cake float
• Words on cakes in 'Alice in Wonderland' and 'Animal House'
• Words on a fictional cake
• Command on a cake in Wonderland
• Message obeyed by Alice
• Cake words in 'Alice in Wonderland'
• "Suck it!"