cheer ‧ lead ‧ ing /ˈtʃɪəˌliːdɪŋ $ ˈtʃɪr-/ BrE AmE noun [uncountable]
1 . the activity of being a cheerleader:
a cheerleading camp for girls
2 . American English the act of loudly supporting an organization, idea etc and not being willing to listen to criticism of it:
The conventions have become nothing but cheerleading rallies for the presidential campaign.