1) Ectomorph 2) Epitome of thinness 3) Lanky fellow 4) Lanky person 5) Lincoln, physically 6) One called Stretch maybe 7) Skinny fellow 8) Skinny six-footer 9) Skinny sort 10) Slang for a tall thin person 11) Stick figure 12) Tall and thin person 13) Tall skinny guy 14) Tall thin person 15) Thin fellow 1) Scrag 
Beanpole is slang for a tall thin person.
a tall pole for a bean plant to climb on. · a tall, lanky person.