I have a data.frame like this:
Client Product
1 VV_Brazil_Jul
2 VV_Brazil_Mar
5 VV_US_Jul
1 VV_JP_Apr
3 VV_CH_May
6 VV_Brazil_Aug
I would like to delete all rows with "Brazil".
You can do the same thing with the tidyverse collection
dplyr::slice(df, -stringr::str_which(df$Product, "Brazil"))