1. a person who deliberately underrepresents their abilities or performance to gain an unfair advantage
Usage: informal
2. a person who attacks someone with a sandbag or similar weapon
Usage: dated

Examples

• The golf tournament had strict rules against sandbaggers who claimed higher handicaps.
• He was known as a sandbagger in poker games, pretending to be a beginner.
• The coach warned against being a sandbagger during tryouts.
• She accused him of being a sandbagger after he easily won the amateur competition.
• The league implemented new measures to prevent sandbaggers from dominating lower divisions.
• Don’t be a sandbagger – play at your actual skill level.