What is another word for getting tough with?
Pronunciation: [ɡˌɛtɪŋ tˈʌf wɪð] (IPA) 
When it comes to taking a firm stance or enforcing discipline, there are many synonyms for the phrase "getting tough with." Some of these include: cracking down on, laying down the law, taking a hard line, being strict, being stern, imposing consequences, putting one's foot down, being uncompromising, and standing one's ground. All of these phrases convey a sense of seriousness and assertiveness, indicating that the person in charge is not willing to tolerate any unacceptable behavior. Whether it's in a personal or professional setting, getting tough with others may be necessary at times to ensure that rules are respected and objectives are met.
