Answer: jamming

AnswerCrossword Clue
jammingSqueeze or pack (someone or something) tightly into a specified space
jammingMake (a radio transmission) unintelligible by causing interference
jammingPush (something) roughly and forcibly into position or a space
jammingCause (telephone lines) to be continuously busy with a large number of calls
jammingImprovise with other musicians, esp. in jazz or blues
jammingPush or crowd into an area or space
jammingCrowd onto (a road) so as to block it
jammingJAM, to force together tightly
jammingBecome or make unable to move or work due to a part seizing or becoming stuck