подбивам означава в английски

derogate▼(to remove a part; to detract from (a quality of excellence, authority etc.))
verb
[UK: ˈde.rə.ɡeɪt] [US: ˈde.rə.ɡeɪt]

undercut [undercut, undercutting, undercuts]▼(to sell at a lower price than a competitor)
verb
[UK: ˌʌn.dəˈkʌt] [US: ˈʌn.dərˌkət]