"bungs" in the noun sense
1. bung, spile
a plug used to close a hole in a barrel or flask
"bungs" in the verb sense
1. tip, fee, bung
give a tip or gratuity to in return for a service, beyond the compensation agreed on
"Remember to tip the waiter"
"fee the steward"
close with a cork or stopper
Source: WordNet® (An amazing lexical database of English)
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