Examples:

• There were two big reasons why our campaign had failed big time.
• I owe Samuel big time.
• Don played with various jazz combos before he hit the big time.
• I'm afraid this time I derped big time.
• The actor always performed in lightweight roles and never made the big time.
• If I get my dream job, I'll celebrate big time.
• This is the big time, and there's no room for mediocrity. If you're not up to the task, there's always someone in line behind you.
• He fell for her big time.
• And so they started promoting cricket big time, started promoting clubs big time.
• Harvard was wrong, big time.