Press home your advantage - Idioms by The Free Dictionary
press home your advantage
press home (one's) advantage
To capitalize on or make full use of the advantage one has over someone or something else. With the party in disarray following the resignations of several top party members, the opposition is looking to press home their advantage in the upcoming elections.
press ˌhome your adˈvantage make good use of the fact that you are in a stronger position than your opponent, enemy, etc: Once they realized that the management was so weak, the union leaders pressed home their advantage and asked for another three days’ holiday.