standing room only (?.)

• SRO
• brimful
• brimming
• bulging
• bursting
• capacity
• chock-full
• chuck-full
• congested
• cram-full
• crammed
• farci
• filled
• flush
• full
• full to bursting
• jam-packed
• overfull
• overstuffed
• packed
• packed like sardines
• plenary
• ready to burst
• replete
• round
• satiated
• saturated
• soaked
• stuffed
• surfeited
• swollen
• topful