Related Clues:

• Put in up front
• Prepared to play poker
• Tossed in a chip
• Pitched in
• Started a hand
• Chose to participate
• Contributed, with ''up''
• Earned a hand?
• Said "I'm in," in effect
• Decided to join
• Chipped in at the start
• Kicked in, as chips
• Kicked in seed money
• Joined a poker pot
• Paid for cards