"drumming" in the noun sense
the act of playing drums
"he practiced his drumming several hours every day"
"drumming" in the verb sense
1. drum, beat, thrum
make a rhythmic sound
"Rain drummed against the windshield"
"The drums beat all night"
play a percussion instrument
3. cram, grind away, drum, bone up, swot, get up, mug up, swot up, bone
study intensively, as before an exam
"I had to bone up on my Latin verbs before the final exam"
Source: WordNet® (An amazing lexical database of English)
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